{"title":"Cylinder Works","description":null,"products":[{"product_id":"cylinder-works-standard-bore-cylinder-kit-cw50014k02","title":"Cylinder Works Standard Bore Cylinder Kit CW50014K02","description":"\u003cp\u003eThe Cylinder Works Standard Bore Cylinder Kit is a complete replacement top-end solution designed to restore dependable engine performance with a stock-style fit and appearance. Manufacturer part number CW50014K02 and vendor part number 422-50014K02 identify this standard bore kit for accurate ordering and replacement applications.\u003c\/p\u003e\u003cp\u003eThe kit includes a standard bore cylinder, matched Vertex piston kit, and required gaskets for a comprehensive installation. The piston and cylinder combination is engineered to support longevity, consistent performance, and reduced engine noise. The cylinder maintains a stock-like appearance while featuring a nickel silicon carbide plated bore for improved durability and extended service life.\u003c\/p\u003e\u003cp\u003eInstallation is designed to require no machine work in applicable standard bore applications, helping simplify top-end service when the original engine specifications are retained. This kit is intended as a replacement cylinder assembly for standard bore engines and is suitable for fitment where the corresponding Cylinder Works and Vertex components are specified. Always verify engine model, year, and application compatibility before installation.\u003c\/p\u003e\u003cp\u003eReplacement pistons, gaskets, and ring sets are available separately for future service needs. The included top-end gasket kit does not include valve stem seals, so confirm whether additional seals are required for the intended repair.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eComplete standard bore cylinder kit for stock-bore engine applications\u003c\/li\u003e\n\u003cli\u003eIncludes cylinder, matched Vertex piston kit, and gaskets\u003c\/li\u003e\n\u003cli\u003eNickel silicon carbide plated cylinder bore for extended service life\u003c\/li\u003e\n\u003cli\u003eStock-style cylinder appearance supports an original-equipment look\u003c\/li\u003e\n\u003cli\u003eDesigned to require no machine work in applicable installations\u003c\/li\u003e\n\u003cli\u003eMatched Vertex piston helps support durability, performance, and reduced engine noise\u003c\/li\u003e\n\u003cli\u003eReplacement pistons, gaskets, and ring sets are available\u003c\/li\u003e\n\u003cli\u003eTop-end gasket kit does not include valve stem seals\u003c\/li\u003e\n\u003cli\u003eCylinder Works manufacturer part number: CW50014K02\u003c\/li\u003e\n\u003cli\u003eVendor part number: 422-50014K02\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CYLINDER WORKS","offers":[{"title":"Default Title","offer_id":67550698897643,"sku":"422-50014K02","price":1009.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/efed-6a56a0c06e419.jpg?v=1790709854"},{"product_id":"cylinder-works-cw50014k01-standard-bore-cylinder-kit","title":"Cylinder Works CW50014K01 Standard Bore Cylinder Kit","description":"\u003cp\u003eThe Cylinder Works CW50014K01 Standard Bore Cylinder Kit is a complete replacement top-end solution designed to restore dependable engine performance without requiring cylinder machining. This kit includes a standard-bore cylinder, matched Vertex piston kit, and the necessary gaskets for installation. The cylinder maintains an original-equipment-style appearance while providing a durable replacement for the factory component.\u003c\/p\u003e\u003cp\u003eManufactured by Cylinder Works and supplied under vendor part number CW50014K01, the kit uses a nickel silicon carbide-plated cylinder surface to promote extended service life, consistent performance, and reduced engine noise. The matched Vertex piston is selected to support proper fit and reliable operation, making this kit suitable for standard-bore engine rebuilds and top-end service applications. Fitment should be confirmed against the vehicle’s year, make, model, and engine specifications before installation.\u003c\/p\u003e\u003cp\u003eInstallation is designed as a direct standard-bore replacement, with no machine work needed in typical applications. The included top-end gasket kit does not contain valve stem seals, so those components should be inspected and replaced separately when required. Cylinder Works also supports the assembly with replacement piston, gasket, and ring sets for future maintenance. Use the manufacturer’s service procedures and verify all clearances before completing installation.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eComplete standard-bore cylinder kit for top-end engine rebuilding\u003c\/li\u003e\n\u003cli\u003eIncludes cylinder, matched Vertex piston kit, and gaskets\u003c\/li\u003e\n\u003cli\u003eNickel silicon carbide-plated cylinder for extended service life\u003c\/li\u003e\n\u003cli\u003eOriginal-equipment-style cylinder appearance\u003c\/li\u003e\n\u003cli\u003eDesigned for standard-bore replacement applications\u003c\/li\u003e\n\u003cli\u003eNo machine work needed in typical installations\u003c\/li\u003e\n\u003cli\u003eMatched Vertex piston supports longevity, performance, and reduced engine noise\u003c\/li\u003e\n\u003cli\u003eTop-end gasket kit does not include valve stem seals\u003c\/li\u003e\n\u003cli\u003eReplacement piston, gasket, and ring sets are available\u003c\/li\u003e\n\u003cli\u003eBrand: Cylinder Works\u003c\/li\u003e\n\u003cli\u003eManufacturer part number: CW50014K01\u003c\/li\u003e\n\u003cli\u003eVendor part number: CW50014K01\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CYLINDER WORKS","offers":[{"title":"Default Title","offer_id":67550704173291,"sku":"422-50014K01","price":1009.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/4175-6a56a18fdecfa.jpg?v=1790709922"},{"product_id":"cylinder-works-standard-bore-cylinder-kit-cw50013k01","title":"Cylinder Works Standard Bore Cylinder Kit CW50013K01","description":"\u003cp\u003eThe Cylinder Works Standard Bore Cylinder Kit is a complete top-end replacement solution designed to restore dependable engine performance while maintaining the original bore specification. Manufacturer part number CW50013K01 is engineered as a direct replacement cylinder kit for compatible applications, providing the essential components needed for a reliable rebuild without unnecessary modifications.\u003c\/p\u003e\u003cp\u003eThis kit includes a standard-bore cylinder, matched Vertex piston kit, and top-end gaskets. The piston and cylinder combination is selected to support longevity, consistent performance, and reduced engine noise. The cylinder features a nickel-silicon-carbide plated bore for improved durability and extended service life, while its stock-style appearance helps preserve the original look of the engine.\u003c\/p\u003e\u003cp\u003eInstallation is designed to require no machine work in applicable standard-bore replacements, helping simplify the rebuild process. The included top-end gasket kit does not include valve stem seals, so those seals should be inspected and replaced separately as needed. This Cylinder Works kit is intended for compatible standard-bore applications and should be verified against the vehicle model and engine specifications before installation. Replacement pistons, gaskets, and ring sets are also available separately for future maintenance.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eComplete standard-bore cylinder kit for compatible applications\u003c\/li\u003e\n\u003cli\u003eIncludes cylinder, matched Vertex piston kit, and gaskets\u003c\/li\u003e\n\u003cli\u003eNickel-silicon-carbide-plated cylinder bore supports extended service life\u003c\/li\u003e\n\u003cli\u003eMatched piston design helps promote longevity, performance, and reduced engine noise\u003c\/li\u003e\n\u003cli\u003eStock-style cylinder appearance maintains an original-equipment look\u003c\/li\u003e\n\u003cli\u003eDesigned for standard-bore replacement applications\u003c\/li\u003e\n\u003cli\u003eNo machine work required for applicable installations\u003c\/li\u003e\n\u003cli\u003eTop-end gasket kit does not include valve stem seals\u003c\/li\u003e\n\u003cli\u003eReplacement piston, gasket, and ring sets are available separately\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CYLINDER WORKS","offers":[{"title":"Default Title","offer_id":67550713970923,"sku":"422-50013K01","price":840.61,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/5b8f-6a579fa31fca5.jpg?v=1790710062"},{"product_id":"cylinder-works-standard-bore-cylinder-kit-50007-k03","title":"Cylinder Works Standard Bore Cylinder Kit 50007-K03","description":"\u003cp\u003eThe Cylinder Works Standard Bore Cylinder Kit is a complete top-end replacement designed to restore dependable engine performance with a factory-style fit and appearance. Manufacturer part number 50007-K03 and vendor part number 422-50007K03 identify this kit for accurate ordering and application matching. The standard bore configuration is intended for compatible engines requiring a direct replacement cylinder without additional machining.\u003c\/p\u003e\u003cp\u003eThis kit includes the cylinder, piston kit, and gaskets needed for installation. The cylinder features a nickel-silicon-carbide plated bore for extended service life, improved durability, and consistent performance. A Vertex piston is matched to the cylinder to support longevity, efficient operation, and reduced engine noise. The cylinder maintains a stock-like appearance while providing a practical solution for rebuilding or servicing the top end.\u003c\/p\u003e\u003cp\u003eInstallation is designed to require no machine work when used with the correct application and compatible engine components. The included top-end gasket kit does not contain valve stem seals, so those seals should be inspected and replaced separately as needed. This Cylinder Works kit is intended for standard-bore replacement applications; verify engine model and fitment before ordering. Replacement pistons, gaskets, and ring sets are available separately for future service requirements.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eComplete standard bore cylinder kit\u003c\/li\u003e\n\u003cli\u003eIncludes cylinder, piston kit, and gaskets\u003c\/li\u003e\n\u003cli\u003eMatched Vertex piston supports longevity, performance, and reduced engine noise\u003c\/li\u003e\n\u003cli\u003eNickel-silicon-carbide plated cylinder bore for extended service life\u003c\/li\u003e\n\u003cli\u003eStock-style cylinder appearance\u003c\/li\u003e\n\u003cli\u003eNo machine work required for compatible applications\u003c\/li\u003e\n\u003cli\u003eTop-end gasket kit does not include valve stem seals\u003c\/li\u003e\n\u003cli\u003eStandard-bore replacement configuration\u003c\/li\u003e\n\u003cli\u003eReplacement piston, gasket, and ring sets available\u003c\/li\u003e\n\u003cli\u003eBrand: Cylinder Works\u003c\/li\u003e\n\u003cli\u003eManufacturer part number: 50007-K03\u003c\/li\u003e\n\u003cli\u003eVendor part number: 422-50007K03\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CYLINDER WORKS","offers":[{"title":"Default Title","offer_id":67550717706475,"sku":"422-50007K03","price":888.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/c830-6a5e304dbed6b.jpg?v=1790710131"},{"product_id":"cylinder-works-standard-bore-cylinder-cw50014","title":"Cylinder Works Standard Bore Cylinder CW50014","description":"\u003cp\u003eThe Cylinder Works Standard Bore Cylinder is designed to restore dependable engine performance while maintaining a stock-style appearance. This replacement cylinder is engineered for compatible applications requiring a standard bore configuration and is built to provide a reliable fit with the original engine components.\u003c\/p\u003e\u003cp\u003eManufactured by Cylinder Works, this cylinder features a nickel silicon carbide plated bore for improved durability, wear resistance, and extended service life. The finish helps support consistent piston movement and reliable operation in demanding riding conditions while preserving the look and function of the original cylinder.\u003c\/p\u003e\u003cp\u003eConfirm vehicle application and engine compatibility before installation. This Cylinder Works cylinder is identified by manufacturer part number CW50014 and vendor part number 422-50014. Professional installation and adherence to the vehicle manufacturer's service procedures are recommended for proper fitment and performance.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eStock-style appearance: Cylinder is designed to look like the original equipment cylinder.\u003c\/li\u003e\n\u003cli\u003eNickel silicon carbide plating: Durable bore coating helps improve wear resistance and service life.\u003c\/li\u003e\n\u003cli\u003eStandard bore design: Intended for compatible engines requiring a standard bore replacement cylinder.\u003c\/li\u003e\n\u003cli\u003eReliable fitment: Engineered for use with compatible original engine components.\u003c\/li\u003e\n\u003cli\u003eManufacturer: Cylinder Works.\u003c\/li\u003e\n\u003cli\u003eManufacturer part number: CW50014.\u003c\/li\u003e\n\u003cli\u003eVendor part number: 422-50014.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CYLINDER WORKS","offers":[{"title":"Default Title","offer_id":67550720327915,"sku":"422-50014","price":888.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/9ccb-6a579ee8c3dab.jpg?v=1790710158"},{"product_id":"cylinder-works-standard-bore-cylinder-cw50013","title":"Cylinder Works Standard Bore Cylinder CW50013","description":"\u003cp\u003eThe Cylinder Works Standard Bore Cylinder is designed to provide a dependable replacement for the original equipment cylinder while maintaining a stock-style appearance. Its standard-bore configuration supports proper fitment for compatible applications and is suitable for restoring engine performance during a top-end rebuild or cylinder replacement.\u003c\/p\u003e\u003cp\u003eManufactured by Cylinder Works, this cylinder features a nickel silicon carbide plated bore for improved durability and extended service life. The plating helps provide a hard, wear-resistant surface while supporting consistent piston movement and reliable operation under demanding riding conditions.\u003c\/p\u003e\u003cp\u003eFitment is application-specific. Confirm compatibility with your vehicle’s year, make, model, engine configuration, and required standard-bore specification before installation. This product is identified by Cylinder Works manufacturer part number CW50013 and vendor part number 422-50013.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eStock-style cylinder appearance\u003c\/li\u003e\n\u003cli\u003eNickel silicon carbide plating for increased durability and longer service life\u003c\/li\u003e\n\u003cli\u003eStandard-bore design for compatible engine applications\u003c\/li\u003e\n\u003cli\u003eBrand: Cylinder Works\u003c\/li\u003e\n\u003cli\u003eManufacturer Part Number: CW50013\u003c\/li\u003e\n\u003cli\u003eVendor Part Number: 422-50013\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CYLINDER WORKS","offers":[{"title":"Default Title","offer_id":67550727045355,"sku":"422-50013","price":718.15,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/bb52-6a738b006562c.jpg?v=1790710212"},{"product_id":"cylinder-works-standard-bore-cylinder-kit-cw50008k02-for-compatible-motorcycle-engines","title":"Cylinder Works Standard Bore Cylinder Kit CW50008K02 for Compatible Motorcycle Engines","description":"\u003cp\u003eThe Cylinder Works Standard Bore Cylinder Kit, part number CW50008K02, is a complete replacement top-end solution for compatible motorcycle engines requiring a standard-bore cylinder. Designed to match original equipment appearance, this kit provides a practical way to restore engine performance while maintaining a stock-style look. The kit includes the cylinder, matched Vertex piston kit, and required gaskets for a streamlined installation.\u003c\/p\u003e\u003cp\u003eEach Cylinder Works cylinder is nickel silicon carbide plated to promote long service life, durability, and consistent performance. The included Vertex piston is matched to the cylinder to support reliable operation, reduce engine noise, and help maintain proper fit throughout the engine’s service life. This standard-bore configuration is intended for direct replacement applications and requires no machine work when used with compatible components and manufacturer specifications.\u003c\/p\u003e\u003cp\u003eFitment: This kit is designed for compatible motorcycle engine applications using a standard-bore cylinder. Confirm vehicle model, engine specifications, and original cylinder requirements before installation. The top-end gasket kit does not include valve stem seals. Replacement pistons, gasket sets, and ring sets are available separately for future service and maintenance. Manufactured by Cylinder Works and identified by manufacturer part number CW50008K02; vendor part number 422-50008K02.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eComplete standard-bore cylinder kit for compatible motorcycle engines\u003c\/li\u003e\n\u003cli\u003eIncludes cylinder, matched Vertex piston kit, and gaskets\u003c\/li\u003e\n\u003cli\u003eNickel silicon carbide-plated cylinder supports durability and extended service life\u003c\/li\u003e\n\u003cli\u003eMatched Vertex piston helps promote longevity, performance, and reduced engine noise\u003c\/li\u003e\n\u003cli\u003eStock-style cylinder appearance\u003c\/li\u003e\n\u003cli\u003eNo machine work required for compatible standard-bore applications\u003c\/li\u003e\n\u003cli\u003eTop-end gasket kit does not include valve stem seals\u003c\/li\u003e\n\u003cli\u003eReplacement pistons, gaskets, and ring sets are available separately\u003c\/li\u003e\n\u003cli\u003eBrand: Cylinder Works\u003c\/li\u003e\n\u003cli\u003eManufacturer part number: CW50008K02\u003c\/li\u003e\n\u003cli\u003eVendor part number: 422-50008K02\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CYLINDER WORKS","offers":[{"title":"Default Title","offer_id":67550730748139,"sku":"422-50008K02","price":732.66,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/08f0-6a57a05d3fd83.jpg?v=1790710274"},{"product_id":"cylinder-works-cwbltk01-cylinder-bolt-kit-for-polaris-900-and-1000-models","title":"Cylinder Works CWBLTK01 Cylinder Bolt Kit for Polaris 900 and 1000 Models","description":"\u003cp\u003eThe Cylinder Works CWBLTK01 Cylinder Bolt Kit is designed for repeated engine assembly, disassembly, inspection, and rebuilding procedures on select Polaris models. It replaces OEM torque-to-yield cylinder bolts, which are intended for one-time use, with reusable high-strength hardware. This kit helps reduce replacement hardware costs for engines that require frequent service.\u003c\/p\u003e\u003cp\u003eManufactured by Cylinder Works, the kit includes 6 stud bolts, 6 nuts, 6 washers, and 2 side cylinder bolts. The high-strength steel construction supports increased cylinder-head-to-cylinder fastening torque, helping promote consistent clamping force and reduce the risk of cylinder head gasket leakage. A black oxide coating provides added corrosion resistance and helps protect the hardware from rust during service and storage.\u003c\/p\u003e\u003cp\u003eFitment includes the 2011, 2012, and 2013 Polaris RZR XP 900; 2012 and 2013 Polaris RZR XP 900 LE; 2013 Polaris RZR XP 4 900 and RZR XP 4 900 Jagged X; 2016 Polaris RZR 4 900 EPS; 2016 Polaris General 1000 EPS; 2016 Polaris ACE 900 SP EPS; and 2017 Polaris ACE 900 XC. Verify the vehicle model and engine application before installation to ensure proper compatibility. The manufacturer part number is CWBLTK01, and the vendor part number is 422-0001.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eReusable cylinder bolt hardware allows multiple engine assembly and disassembly procedures without replacing the bolts after each service\u003c\/li\u003e\n\u003cli\u003eEliminates OEM torque-to-yield, one-time-use cylinder bolts\u003c\/li\u003e\n\u003cli\u003eHelps reduce hardware replacement costs during frequent engine inspections and rebuilds\u003c\/li\u003e\n\u003cli\u003eIncludes 6 stud bolts, 6 nuts, 6 washers, and 2 side cylinder bolts\u003c\/li\u003e\n\u003cli\u003eHigh-strength steel supports increased cylinder head-to-cylinder fastening torque to help prevent head gasket leakage\u003c\/li\u003e\n\u003cli\u003eBlack oxide coating helps resist corrosion and rust\u003c\/li\u003e\n\u003cli\u003eFits select Polaris RZR, General, and ACE 900 and 1000 models\u003c\/li\u003e\n\u003cli\u003eBrand: Cylinder Works\u003c\/li\u003e\n\u003cli\u003eManufacturer part number: CWBLTK01\u003c\/li\u003e\n\u003cli\u003eVendor part number: 422-0001\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\n2011 Polaris RZR XP 900\u003cbr\u003e\n2012 Polaris RZR XP 4 900\u003cbr\u003e\n2012 Polaris RZR XP 4 900 LE\u003cbr\u003e\n2012 Polaris RZR XP 900\u003cbr\u003e\n2012 Polaris RZR XP 900 LE\u003cbr\u003e\n2013 Polaris RZR XP 4 900\u003cbr\u003e\n2013 Polaris RZR XP 4 900 Jagged X\u003cbr\u003e\n2013 Polaris RZR XP 900\u003cbr\u003e\n2014 Polaris RZR 4 900 EPS\u003cbr\u003e\n2014 Polaris RZR XP 1000\u003cbr\u003e\n2014 Polaris RZR XP 4 1000 EPS\u003cbr\u003e\n2015 Polaris RZR 4 900 EPS\u003cbr\u003e\n2015 Polaris RZR XP 1000\u003cbr\u003e\n2015 Polaris RZR XP 4 1000 EPS\u003cbr\u003e\n2016 Polaris ACE 900 SP EPS\u003cbr\u003e\n2016 Polaris General 1000 EPS\u003cbr\u003e\n2016 Polaris RZR 4 900 EPS\u003cbr\u003e\n2016 Polaris RZR XP 1000\u003cbr\u003e\n2016 Polaris RZR XP 4 Turbo EPS\u003cbr\u003e\n2016 Polaris RZR XP Turbo EPS\u003cbr\u003e\n2017 Polaris ACE 900 Xc\u003cbr\u003e\n2017 Polaris General 1000 EPS\u003cbr\u003e\n2017 Polaris General 4 1000 EPS\u003cbr\u003e\n2017 Polaris Ranger Crew XP 1000\u003cbr\u003e\n2017 Polaris Ranger Crew XP 1000 EPS\u003cbr\u003e\n2017 Polaris Ranger XP 1000\u003cbr\u003e\n2017 Polaris Ranger XP 1000 EPS\u003cbr\u003e\n2017 Polaris RZR 4 900 EPS\u003cbr\u003e\n2017 Polaris RZR XP 1000\u003cbr\u003e\n2017 Polaris RZR XP 4 1000 EPS\u003cbr\u003e\n2017 Polaris RZR XP 4 Turbo EPS\u003cbr\u003e\n2017 Polaris RZR XP Turbo EPS\u003cbr\u003e\n2018 Polaris ACE 900 Xc\u003cbr\u003e\n2018 Polaris General 1000 EPS\u003cbr\u003e\n2018 Polaris General 1000 Premium EPS\u003cbr\u003e\n2018 Polaris General 4 1000 EPS\u003cbr\u003e\n2018 Polaris Ranger Crew XP 1000 EPS\u003cbr\u003e\n2018 Polaris Ranger XP 1000 EPS\u003cbr\u003e\n2018 Polaris RZR 1000 RS1\u003cbr\u003e\n2018 Polaris RZR S4 900 EPS\u003cbr\u003e\n2018 Polaris RZR XP 1000 EPS\u003cbr\u003e\n2018 Polaris RZR XP 4 1000 EPS\u003cbr\u003e\n2018 Polaris RZR XP Turbo S\u003cbr\u003e\n2019 Polaris ACE 900 Xc\u003cbr\u003e\n2019 Polaris General 1000 EPS\u003cbr\u003e\n2019 Polaris General 1000 Premium EPS\u003cbr\u003e\n2019 Polaris General 4 1000 EPS\u003cbr\u003e\n2019 Polaris Ranger Crew XP 1000 EPS\u003cbr\u003e\n2019 Polaris Ranger XP 1000 EPS\u003cbr\u003e\n2019 Polaris RZR 1000 RS1\u003cbr\u003e\n2019 Polaris RZR S4 900 EPS\u003cbr\u003e\n2019 Polaris RZR XP 1000 EPS\u003cbr\u003e\n2019 Polaris RZR XP 4 1000 EPS\u003cbr\u003e\n2019 Polaris RZR XP 4 Turbo\u003cbr\u003e\n2019 Polaris RZR XP 4 Turbo S\u003cbr\u003e\n2019 Polaris RZR XP 4 Turbo S Velocity\u003cbr\u003e\n2019 Polaris RZR XP Turbo\u003cbr\u003e\n2019 Polaris RZR XP Turbo S\u003cbr\u003e\n2020 Polaris General 1000 Deluxe EPS\u003cbr\u003e\n2020 Polaris General 1000 Premium EPS\u003cbr\u003e\n2020 Polaris General 1000 Sport\u003cbr\u003e\n2020 Polaris General 4 1000 Deluxe\u003cbr\u003e\n2020 Polaris General 4 1000 EPS\u003cbr\u003e\n2020 Polaris General XP 1000 Deluxe\u003cbr\u003e\n2020 Polaris General XP 4 1000 Deluxe\u003cbr\u003e\n2020 Polaris Ranger Crew XP 1000 Premium EPS\u003cbr\u003e\n2020 Polaris Ranger Crew XP 1000 Texas Edition EPS\u003cbr\u003e\n2020 Polaris Ranger XP 1000 Premium\u003cbr\u003e\n2020 Polaris Ranger XP 1000 Texas Edition\u003cbr\u003e\n2020 Polaris RZR 1000 RS1\u003cbr\u003e\n2020 Polaris RZR Pro XP\u003cbr\u003e\n2020 Polaris RZR Pro XP 4 Premium\u003cbr\u003e\n2020 Polaris RZR Pro XP Premium\u003cbr\u003e\n2020 Polaris RZR Pro XP Ultimate\u003cbr\u003e\n2020 Polaris RZR XP 1000 EPS\u003cbr\u003e\n2020 Polaris RZR XP 4 1000 EPS\u003cbr\u003e\n2020 Polaris RZR XP 4 Turbo\u003cbr\u003e\n2020 Polaris RZR XP 4 Turbo S\u003cbr\u003e\n2020 Polaris RZR XP 4 Turbo S Velocity\u003cbr\u003e\n2020 Polaris RZR XP Turbo\u003cbr\u003e\n2020 Polaris RZR XP Turbo S\u003cbr\u003e\n2020 Polaris RZR XP Turbo S Velocity\u003cbr\u003e\n2021 Polaris General 1000 Deluxe EPS\u003cbr\u003e\n2021 Polaris General 1000 Premium EPS\u003cbr\u003e\n2021 Polaris General 1000 Sport\u003cbr\u003e\n2021 Polaris General 4 1000 Deluxe\u003cbr\u003e\n2021 Polaris General 4 1000 Premium\u003cbr\u003e\n2021 Polaris General XP 1000 Deluxe\u003cbr\u003e\n2021 Polaris General XP 4 1000 Deluxe\u003cbr\u003e\n2021 Polaris Ranger Crew XP 1000 Premium EPS\u003cbr\u003e\n2021 Polaris Ranger Crew XP 1000 Texas Edition EPS\u003cbr\u003e\n2021 Polaris Ranger Crew XP 1000 Trail Boss EPS\u003cbr\u003e\n2021 Polaris Ranger XP 1000 Premium\u003cbr\u003e\n2021 Polaris Ranger XP 1000 Texas Edition\u003cbr\u003e\n2021 Polaris Ranger XP 1000 Trail Boss\u003cbr\u003e\n2021 Polaris RZR 1000 RS1\u003cbr\u003e\n2021 Polaris RZR Pro XP 4 Premium\u003cbr\u003e\n2021 Polaris RZR Pro XP 4 Sport\u003cbr\u003e\n2021 Polaris RZR Pro XP Premium\u003cbr\u003e\n2021 Polaris RZR Pro XP Sport\u003cbr\u003e\n2021 Polaris RZR Pro XP Ultimate\u003cbr\u003e\n2021 Polaris RZR Turbo S\u003cbr\u003e\n2021 Polaris RZR Turbo S 4\u003cbr\u003e\n2021 Polaris RZR XP 1000 Trails \u0026amp; Rocks EPS\u003cbr\u003e\n2021 Polaris RZR XP 4 1000 Sport\u003cbr\u003e\n2021 Polaris RZR XP 4 Turbo\u003cbr\u003e\n2021 Polaris RZR XP Turbo\u003cbr\u003e\n2022 Polaris General 1000 Deluxe EPS\u003cbr\u003e\n2022 Polaris General 1000 Deluxe Ride Command Edition\u003cbr\u003e\n2022 Polaris General 1000 Premium EPS\u003cbr\u003e\n2022 Polaris General 1000 Sport\u003cbr\u003e\n2022 Polaris General 4 1000 Deluxe Ride Command Edition\u003cbr\u003e\n2022 Polaris General 4 1000 Premium\u003cbr\u003e\n2022 Polaris General XP 1000 Deluxe Ride Command Edition\u003cbr\u003e\n2022 Polaris General XP 1000 Trailhead Edition\u003cbr\u003e\n2022 Polaris General XP 4 1000 Deluxe\u003cbr\u003e\n2022 Polaris General XP 4 1000 Deluxe Ride Command Edition\u003cbr\u003e\n2022 Polaris General XP 4 1000 Trailhead Edition\u003cbr\u003e\n2022 Polaris Ranger 1000\u003cbr\u003e\n2022 Polaris Ranger 1000 EPS\u003cbr\u003e\n2022 Polaris Ranger 1000 Premium\u003cbr\u003e\n2022 Polaris Ranger Crew 1000\u003cbr\u003e\n2022 Polaris Ranger Crew 1000 Premium\u003cbr\u003e\n2022 Polaris Ranger Crew XP 1000 High Lifter Edition EPS\u003cbr\u003e\n2022 Polaris Ranger Crew XP 1000 Northstar Premium EPS\u003cbr\u003e\n2022 Polaris Ranger Crew XP 1000 Northstar Ultimate EPS\u003cbr\u003e\n2022 Polaris Ranger Crew XP 1000 Premium EPS\u003cbr\u003e\n2022 Polaris Ranger Crew XP 1000 Texas Edition EPS\u003cbr\u003e\n2022 Polaris Ranger Crew XP 1000 Trail Boss EPS\u003cbr\u003e\n2022 Polaris Ranger XP 1000 High Lifter Edition EPS\u003cbr\u003e\n2022 Polaris Ranger XP 1000 Northstar Premium\u003cbr\u003e\n2022 Polaris Ranger XP 1000 Northstar Ultimate\u003cbr\u003e\n2022 Polaris Ranger XP 1000 Premium\u003cbr\u003e\n2022 Polaris Ranger XP 1000 Trail Boss\u003cbr\u003e\n2022 Polaris RZR 1000 RS1\u003cbr\u003e\n2022 Polaris RZR 1000 Trail S Premium\u003cbr\u003e\n2022 Polaris RZR 1000 Trail S Ultimate\u003cbr\u003e\n2022 Polaris RZR Pro R 4 Premium\u003cbr\u003e\n2022 Polaris RZR Pro R 4 Sport\u003cbr\u003e\n2022 Polaris RZR Pro R Premium\u003cbr\u003e\n2022 Polaris RZR Pro R Sport\u003cbr\u003e\n2022 Polaris RZR Pro R Ultimate\u003cbr\u003e\n2022 Polaris RZR Pro XP 4 Premium\u003cbr\u003e\n2022 Polaris RZR Pro XP 4 Sport\u003cbr\u003e\n2022 Polaris RZR Pro XP 4 Ultimate\u003cbr\u003e\n2022 Polaris RZR Pro XP Premium\u003cbr\u003e\n2022 Polaris RZR Pro XP Sport\u003cbr\u003e\n2022 Polaris RZR Pro XP Ultimate\u003cbr\u003e\n2022 Polaris RZR XP 1000 High Lifter Edition EPS\u003cbr\u003e\n2022 Polaris RZR XP 1000 Premium\u003cbr\u003e\n2022 Polaris RZR XP 1000 Trails \u0026amp; Rocks EPS\u003cbr\u003e\n2022 Polaris RZR XP 4 1000 High Lifter Edition EPS\u003cbr\u003e\n2022 Polaris RZR XP 4 1000 Premium\u003cbr\u003e\n2022 Polaris RZR XP 4 1000 Sport\u003cbr\u003e\n2023 Polaris General 1000 Sport\u003cbr\u003e\n2023 Polaris General XP 1000 Premium\u003cbr\u003e\n2023 Polaris General XP 1000 Sport\u003cbr\u003e\n2023 Polaris General XP 1000 Ultimate\u003cbr\u003e\n2023 Polaris General XP 4 1000 Premium\u003cbr\u003e\n2023 Polaris General XP 4 1000 Sport\u003cbr\u003e\n2023 Polaris General XP 4 1000 Ultimate\u003cbr\u003e\n2023 Polaris Ranger 1000 EPS\u003cbr\u003e\n2023 Polaris Ranger 1000 Premium\u003cbr\u003e\n2023 Polaris Ranger Crew XP 1000 Northstar Edition EPS\u003cbr\u003e\n2023 Polaris Ranger Crew XP 1000 Premium EPS\u003cbr\u003e\n2023 Polaris Ranger XP 900 EPS Premium\u003cbr\u003e\n2023 Polaris RZR 1000 Trail S Premium\u003cbr\u003e\n2023 Polaris RZR XP 1000 Premium\u003cbr\u003e\n2023 Polaris RZR XP 1000 Sport\u003cbr\u003e\n2023 Polaris RZR XP 4 1000 Premium\u003cbr\u003e\n2023 Polaris RZR XP 4 1000 Sport","brand":"CYLINDER WORKS","offers":[{"title":"Default Title","offer_id":67550738022635,"sku":"422-0001","price":242.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/ead6-61ba2c7f2b5f4.jpg?v=1790710390"},{"product_id":"cylinder-works-big-bore-cylinder-kit-98-00-mm-5-0-mm-10-5-1-compression-for-polaris-1000","title":"Cylinder Works Big Bore Cylinder Kit 98.00 mm, +5.0 mm, 10.5:1 Compression for Polaris 1000","description":"\u003cp\u003eUpgrade the top-end performance of your Polaris 1000 engine with the Cylinder Works Big Bore Cylinder Kit, manufacturer part number 61003-K01. This complete kit is designed with a 98.00 mm standard-style cylinder configuration, a +5.0 mm big bore, and a 10.5:1 compression ratio. It includes the cylinder, matched piston kit, and required gaskets for a convenient performance-focused replacement solution.\u003c\/p\u003e\u003cp\u003eThe cylinder is nickel silicon carbide plated to promote extended service life, consistent heat management, and dependable engine performance. Cylinder Works matches the cylinder with a Vertex piston to support longevity, reduce engine noise, and maintain reliable operation. The cylinder is styled to resemble the original equipment component, helping preserve a factory-like appearance while providing enhanced displacement and performance. No machine work is needed for installation when used as intended with the compatible application.\u003c\/p\u003e\u003cp\u003eThis kit fits select Polaris General and RZR XP 1000 models, including the 2016 Polaris General 1000 EPS; 2014–2018 Polaris RZR XP 1000 models; and 2014–2017 Polaris RZR XP 4 1000 EPS models. Confirm vehicle year, model, engine specifications, and installation requirements before ordering. Replacement pistons, gaskets, and ring sets are also available separately. The included top-end gasket kit does not include valve stem seals.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eComplete big bore kit with cylinder, piston kit, and gaskets\u003c\/li\u003e\n\u003cli\u003e98.00 mm bore with +5.0 mm displacement increase\u003c\/li\u003e\n\u003cli\u003e10.5:1 compression ratio for enhanced engine performance\u003c\/li\u003e\n\u003cli\u003eNickel silicon carbide plated cylinder for extended service life\u003c\/li\u003e\n\u003cli\u003eMatched Vertex piston helps support longevity, performance, and reduced engine noise\u003c\/li\u003e\n\u003cli\u003eFactory-style cylinder appearance\u003c\/li\u003e\n\u003cli\u003eNo machine work needed when installed for the specified application\u003c\/li\u003e\n\u003cli\u003eFits select 2014–2018 Polaris RZR XP 1000, RZR XP 4 1000 EPS, and 2016 Polaris General 1000 EPS models\u003c\/li\u003e\n\u003cli\u003eReplacement pistons, gaskets, and ring sets are available\u003c\/li\u003e\n\u003cli\u003eTop-end gasket kit does not include valve stem seals\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\n2014 Polaris RZR XP 1000\u003cbr\u003e\n2014 Polaris RZR XP 4 1000 EPS\u003cbr\u003e\n2015 Polaris RZR XP 1000\u003cbr\u003e\n2015 Polaris RZR XP 4 1000 EPS\u003cbr\u003e\n2016 Polaris General 1000 EPS\u003cbr\u003e\n2016 Polaris RZR 1000 S EPS\u003cbr\u003e\n2016 Polaris RZR XP 1000\u003cbr\u003e\n2017 Polaris RZR XP 1000\u003cbr\u003e\n2017 Polaris RZR XP 4 1000 EPS\u003cbr\u003e\n2018 Polaris RZR XP 1000 EPS\u003cbr\u003e\n2018 Polaris RZR XP 4 1000 EPS","brand":"CYLINDER WORKS","offers":[{"title":"Default Title","offer_id":67550743986411,"sku":"422-61003K","price":1351.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/caca-5a590e78b325d.jpg?v=1790710466"},{"product_id":"cylinder-works-61002-k02-big-bore-cylinder-kit-82-mm-10-2-1-compression-for-polaris-800","title":"Cylinder Works 61002-K02 Big Bore Cylinder Kit, 82 mm, 10.2:1 Compression for Polaris 800","description":"\u003cp\u003eUpgrade the top-end performance of your Polaris 800 with the Cylinder Works 61002-K02 Big Bore Cylinder Kit. This 82 mm, +2.0 mm big bore kit features a 10.2:1 compression ratio and is designed to provide dependable performance, improved engine response, and long-term durability. The cylinder has a stock-style appearance while incorporating nickel silicon carbide plating for extended service life and reliable cylinder-wall protection.\u003c\/p\u003e\u003cp\u003eThe complete kit includes the cylinder, matched Vertex piston kit, piston rings, and required gaskets for a comprehensive top-end rebuild. Cylinder Works matches the components to help promote longevity, consistent performance, and reduced engine noise. No machine work is needed for installation when used with the applicable Polaris 800 engine components. The top-end gasket kit does not include valve stem seals.\u003c\/p\u003e\u003cp\u003eThis Cylinder Works kit fits 2011–2014 Polaris RZR 800 models, 2011–2014 Polaris Sportsman 800 EFI models, and select Polaris Ranger 800 4x4 applications, including 2011 and 2014 models. Confirm the vehicle configuration and engine application before ordering. Replacement pistons, gaskets, and ring sets are available separately for future service needs. Manufacturer part number 61002-K02 and vendor part number 422-61002K2 identify this kit.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eApplication: Big bore top-end kit for select Polaris 800 engines\u003c\/li\u003e\n\u003cli\u003eSize: 82 mm bore with a +2.0 mm overbore\u003c\/li\u003e\n\u003cli\u003eCompression Ratio: 10.2:1 for enhanced engine response\u003c\/li\u003e\n\u003cli\u003eComponents: Includes cylinder, Vertex piston kit, piston rings, and gaskets\u003c\/li\u003e\n\u003cli\u003eCylinder Finish: Nickel silicon carbide plated for extended cylinder life\u003c\/li\u003e\n\u003cli\u003eFitment: Fits select 2011–2014 Polaris RZR 800, Sportsman 800 EFI, and Ranger 800 4x4 models\u003c\/li\u003e\n\u003cli\u003eInstallation: No machine work needed for applicable installations\u003c\/li\u003e\n\u003cli\u003eAppearance: Stock-style cylinder design\u003c\/li\u003e\n\u003cli\u003eManufacturer: Cylinder Works\u003c\/li\u003e\n\u003cli\u003eManufacturer Part Number: 61002-K02\u003c\/li\u003e\n\u003cli\u003eVendor Part Number: 422-61002K2\u003c\/li\u003e\n\u003cli\u003eServiceability: Replacement piston, gasket, and ring sets are available\u003c\/li\u003e\n\u003cli\u003eGasket Note: Top-end gasket kit does not include valve stem seals\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\n2011 Polaris Ranger 800 4x4\u003cbr\u003e\n2011 Polaris Ranger 800 6X6\u003cbr\u003e\n2011 Polaris Ranger Crew 800 4x4\u003cbr\u003e\n2011 Polaris RZR 800\u003cbr\u003e\n2011 Polaris Sportsman 800 EFI\u003cbr\u003e\n2011 Polaris Sportsman Big Boss 6X6 800\u003cbr\u003e\n2012 Polaris Ranger 800 6X6\u003cbr\u003e\n2012 Polaris Ranger Crew 800 4x4\u003cbr\u003e\n2012 Polaris Ranger XP 800\u003cbr\u003e\n2012 Polaris RZR 800\u003cbr\u003e\n2012 Polaris Sportsman 800 EFI\u003cbr\u003e\n2012 Polaris Sportsman Big Boss 6X6 800\u003cbr\u003e\n2013 Polaris Ranger 800 4x4\u003cbr\u003e\n2013 Polaris Ranger 800 4x4 [Midsize]\u003cbr\u003e\n2013 Polaris Ranger 800 6X6\u003cbr\u003e\n2013 Polaris Ranger Crew 800 4x4\u003cbr\u003e\n2013 Polaris RZR 800\u003cbr\u003e\n2013 Polaris Sportsman 800 EFI\u003cbr\u003e\n2013 Polaris Sportsman Big Boss 6X6 800\u003cbr\u003e\n2013 Polaris Sportsman Forest 800 6x6\u003cbr\u003e\n2014 Polaris Ranger 800 4x4\u003cbr\u003e\n2014 Polaris Ranger 800 4x4 [Midsize]\u003cbr\u003e\n2014 Polaris Ranger 800 6X6\u003cbr\u003e\n2014 Polaris Ranger Crew 800 4x4\u003cbr\u003e\n2014 Polaris RZR 800\u003cbr\u003e\n2014 Polaris Sportsman 800 EFI\u003cbr\u003e\n2014 Polaris Sportsman Big Boss 6X6 800\u003cbr\u003e\n2014 Polaris Sportsman Forest 800 6x6\u003cbr\u003e\n2015 Polaris Ranger 800 6X6\u003cbr\u003e\n2015 Polaris Sportsman Forest 800 6x6\u003cbr\u003e\n2016 Polaris Ranger 800 6X6","brand":"CYLINDER WORKS","offers":[{"title":"Default Title","offer_id":67550748115179,"sku":"422-61002K2","price":1365.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/3c2c-5a590e56436a9.jpg?v=1790710562"},{"product_id":"cylinder-works-big-bore-cylinder-kit-61001-k01-for-polaris-rzr-xp-900-98-00-mm-10-6-1-compression","title":"Cylinder Works Big Bore Cylinder Kit 61001-K01 for Polaris RZR XP 900, 98.00 mm, 10.6:1 Compression","description":"\u003cp\u003eUpgrade the top end of your Polaris RZR XP 900 with the Cylinder Works Big Bore Cylinder Kit, manufacturer part number 61001-K01 and vendor part number 422-61001K. This complete kit uses a 98.00 mm big bore cylinder and a matched Vertex high-compression piston to improve performance while supporting dependable engine operation. The cylinder is designed to maintain a stock-like appearance while providing a durable replacement solution for compatible Polaris applications.\u003c\/p\u003e\u003cp\u003eThe kit includes the cylinder, piston kit, and required gaskets for installation. Its nickel silicon carbide-plated cylinder surface is engineered for extended service life, reduced friction, and consistent performance. The matched Vertex piston helps promote longevity, performance, and reduced engine noise. No machine work is needed for installation when used with the appropriate compatible application and setup. The top-end gasket kit does not include valve stem seals, so those components should be sourced separately if required for your rebuild.\u003c\/p\u003e\u003cp\u003eThis Cylinder Works kit fits the 2011-2013 Polaris RZR XP 900, 2012 Polaris RZR XP 4 900, 2013 Polaris RZR XP 4 900, 2014 Polaris RZR 4 900 EPS, and 2013 Polaris RZR XP 4 900 Jagged X. It is intended for compatible big bore applications and is not a direct replacement cylinder for standard-bore configurations. Replacement pistons, gaskets, and ring sets are available separately for future service needs.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eComplete big bore cylinder kit for compatible Polaris RZR applications\u003c\/li\u003e\n\u003cli\u003e98.00 mm bore with 10.6:1 compression ratio\u003c\/li\u003e\n\u003cli\u003eIncludes cylinder, matched Vertex piston kit, and gaskets\u003c\/li\u003e\n\u003cli\u003eNickel silicon carbide-plated cylinder for extended service life\u003c\/li\u003e\n\u003cli\u003eStock-style cylinder appearance\u003c\/li\u003e\n\u003cli\u003eDesigned to improve performance, longevity, and engine noise control\u003c\/li\u003e\n\u003cli\u003eNo machine work needed for compatible applications\u003c\/li\u003e\n\u003cli\u003eTop-end gasket kit does not include valve stem seals\u003c\/li\u003e\n\u003cli\u003eFits 2011-2013 Polaris RZR XP 900\u003c\/li\u003e\n\u003cli\u003eFits 2012-2013 Polaris RZR XP 4 900\u003c\/li\u003e\n\u003cli\u003eFits 2014 Polaris RZR 4 900 EPS\u003c\/li\u003e\n\u003cli\u003eFits 2013 Polaris RZR XP 4 900 Jagged X\u003c\/li\u003e\n\u003cli\u003eReplacement pistons, gaskets, and ring sets available\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\n2011 Polaris RZR XP 900\u003cbr\u003e\n2012 Polaris RZR XP 4 900\u003cbr\u003e\n2012 Polaris RZR XP 900\u003cbr\u003e\n2013 Polaris RZR XP 4 900\u003cbr\u003e\n2013 Polaris RZR XP 4 900 Jagged X\u003cbr\u003e\n2013 Polaris RZR XP 900\u003cbr\u003e\n2014 Polaris RZR 4 900 EPS","brand":"CYLINDER WORKS","offers":[{"title":"Default Title","offer_id":67550766137579,"sku":"422-61001K","price":1351.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/93d7-572a689f38816.jpg?v=1790710668"},{"product_id":"cylinder-works-big-bore-cylinder-kit-90-00mm-14-0-1-for-husqvarna-and-ktm-350-models-cw51008k01","title":"Cylinder Works Big Bore Cylinder Kit 90.00mm, 14.0:1 for Husqvarna and KTM 350 Models – CW51008K01","description":"\u003cp\u003eUpgrade the top end of your compatible 350cc motorcycle with the Cylinder Works Big Bore Cylinder Kit, part number CW51008K01. This complete kit features a 90.00mm big bore cylinder and a 14.0:1 high-compression piston configuration designed to support strong engine performance while maintaining dependable operation. The cylinder has a stock-style appearance and is engineered as a direct replacement for compatible applications.\u003c\/p\u003e\u003cp\u003eThe kit includes the cylinder, matched Vertex piston kit, and required gaskets for installation. Cylinder Works pairs the cylinder with Vertex pistons to promote longevity, consistent performance, and reduced engine noise. The cylinder is nickel silicon carbide plated for extended service life and typically requires no machine work for installation when used with the specified applications and components.\u003c\/p\u003e\u003cp\u003eFitment includes 2019 Husqvarna FC 350; 2019 KTM 350 SX-F and 350 XC-F; 2020 Husqvarna FC 350, FE 350, and FE 350S; 2020 KTM 350 SX-F, 350 EXC-F, and 350 XC-F; and 2021 KTM 350 SX-F. Verify model year, engine configuration, compression requirements, and installation specifications before ordering. This kit is intended for the listed motorcycles and includes a complete big bore top-end package. The top-end gasket kit does not include valve stem seals. Replacement pistons, gaskets, and ring sets are available separately from Cylinder Works.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eComplete 90.00mm big bore cylinder kit for selected Husqvarna and KTM 350 models\u003c\/li\u003e\n\u003cli\u003e14.0:1 high-compression configuration for enhanced engine performance\u003c\/li\u003e\n\u003cli\u003eIncludes cylinder, matched Vertex piston kit, and gaskets\u003c\/li\u003e\n\u003cli\u003eNickel silicon carbide plated cylinder supports extended service life\u003c\/li\u003e\n\u003cli\u003eStock-style cylinder appearance for an OEM-like installation\u003c\/li\u003e\n\u003cli\u003eDesigned to require no machine work when installed according to application specifications\u003c\/li\u003e\n\u003cli\u003eMatched Vertex piston helps support longevity, performance, and reduced engine noise\u003c\/li\u003e\n\u003cli\u003eReplacement pistons, gaskets, and ring sets are available\u003c\/li\u003e\n\u003cli\u003eTop-end gasket kit does not include valve stem seals\u003c\/li\u003e\n\u003cli\u003eFits select 2019–2021 Husqvarna and KTM 350 motorcycles\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\n2019 Husqvarna FC 350\u003cbr\u003e\n2019 Husqvarna FX 350\u003cbr\u003e\n2019 KTM 350 SX-F\u003cbr\u003e\n2019 KTM 350 XC-F\u003cbr\u003e\n2020 Husqvarna FC 350\u003cbr\u003e\n2020 Husqvarna FE 350\u003cbr\u003e\n2020 Husqvarna FE 350S\u003cbr\u003e\n2020 Husqvarna FX 350\u003cbr\u003e\n2020 KTM 350 EXC-F\u003cbr\u003e\n2020 KTM 350 SX-F\u003cbr\u003e\n2020 KTM 350 XC-F\u003cbr\u003e\n2020 KTM 350 XCF-W\u003cbr\u003e\n2021 Gas-Gas EC 350F\u003cbr\u003e\n2021 Gas-Gas EX 350F\u003cbr\u003e\n2021 Husqvarna FC 350\u003cbr\u003e\n2021 Husqvarna FE 350\u003cbr\u003e\n2021 Husqvarna FE 350S\u003cbr\u003e\n2021 Husqvarna FX 350\u003cbr\u003e\n2021 KTM 350 EXC-F\u003cbr\u003e\n2021 KTM 350 SX-F\u003cbr\u003e\n2021 KTM 350 XC-F\u003cbr\u003e\n2021 KTM 350 XCF-W\u003cbr\u003e\n2022 Gas-Gas EC 350F\u003cbr\u003e\n2022 Gas-Gas EX 350F\u003cbr\u003e\n2022 Gas-Gas MC 350F\u003cbr\u003e\n2022 Husqvarna FC 350\u003cbr\u003e\n2022 Husqvarna FE 350\u003cbr\u003e\n2022 Husqvarna FE 350S\u003cbr\u003e\n2022 Husqvarna FX 350\u003cbr\u003e\n2022 KTM 350 EXC-F\u003cbr\u003e\n2022 KTM 350 SX-F\u003cbr\u003e\n2022 KTM 350 XC-F\u003cbr\u003e\n2022 KTM 350 XCF-W","brand":"CYLINDER WORKS","offers":[{"title":"Default Title","offer_id":67550769971435,"sku":"422-51008K","price":909.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/58be-5e4bffbdbd34b.jpg?v=1790710710"},{"product_id":"cylinder-works-51006-k01-big-bore-cylinder-kit-81-00-mm-14-4-1-compression-for-husqvarna-and-ktm-250","title":"Cylinder Works 51006-K01 Big Bore Cylinder Kit, 81.00 mm, 14.4:1 Compression for Husqvarna and KTM 250","description":"\u003cp\u003eUpgrade the top-end performance of your motorcycle with the Cylinder Works 51006-K01 Big Bore Cylinder Kit. Designed for select Husqvarna and KTM 250 four-stroke models, this complete kit features an 81.00 mm big bore cylinder and a high-compression 14.4:1 piston configuration. The cylinder is engineered to maintain a stock-like appearance while providing a durable, performance-focused replacement for the original component.\u003c\/p\u003e\u003cp\u003eEach kit includes the cylinder, matched Vertex piston kit, and required gaskets for a complete top-end installation. Cylinder Works matches the cylinder and piston components to support longevity, dependable performance, and reduced engine noise. The nickel silicon carbide-plated cylinder provides improved wear resistance and long service life, while the included components help simplify installation without requiring machine work in applicable installations.\u003c\/p\u003e\u003cp\u003eFitment includes 2016-2020 Husqvarna FC 250 models and 2016-2018 KTM 250 SX-F and 250 XC-F models. Verify engine configuration, model year, and clearance requirements before installation. The top-end gasket kit does not include valve stem seals. Replacement pistons, gaskets, and ring sets are available separately for future maintenance. This Cylinder Works kit is manufacturer part number 51006-K01 and vendor part number 422-51006K.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eComplete big bore kit for select Husqvarna and KTM 250 models\u003c\/li\u003e\n\u003cli\u003e81.00 mm bore with 14.4:1 high-compression configuration\u003c\/li\u003e\n\u003cli\u003eIncludes cylinder, matched Vertex piston kit, and gaskets\u003c\/li\u003e\n\u003cli\u003eNickel silicon carbide-plated cylinder supports extended service life\u003c\/li\u003e\n\u003cli\u003eStock-style cylinder appearance\u003c\/li\u003e\n\u003cli\u003eMatched cylinder and piston components help promote longevity, performance, and reduced engine noise\u003c\/li\u003e\n\u003cli\u003eNo machine work required where applicable\u003c\/li\u003e\n\u003cli\u003eTop-end gasket kit does not include valve stem seals\u003c\/li\u003e\n\u003cli\u003eReplacement piston, gasket, and ring sets are available\u003c\/li\u003e\n\u003cli\u003eFits 2016-2020 Husqvarna FC 250, 2016-2018 KTM 250 SX-F, and 2016-2017 KTM 250 XC-F models\u003c\/li\u003e\n\u003cli\u003eBrand: Cylinder Works\u003c\/li\u003e\n\u003cli\u003eManufacturer part number: 51006-K01\u003c\/li\u003e\n\u003cli\u003eVendor part number: 422-51006K\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\n2015 KTM 250 SX-F Factory Edition\u003cbr\u003e\n2016 Husqvarna FC 250\u003cbr\u003e\n2016 KTM 250 SX-F\u003cbr\u003e\n2016 KTM 250 SX-F Factory Edition\u003cbr\u003e\n2016 KTM 250 XC-F\u003cbr\u003e\n2017 Husqvarna FC 250\u003cbr\u003e\n2017 KTM 250 SX-F\u003cbr\u003e\n2017 KTM 250 SX-F Factory Edition\u003cbr\u003e\n2017 KTM 250 XC-F\u003cbr\u003e\n2018 Husqvarna FC 250\u003cbr\u003e\n2018 KTM 250 SX-F\u003cbr\u003e\n2018 KTM 250 XC-F\u003cbr\u003e\n2019 Husqvarna FC 250\u003cbr\u003e\n2019 KTM 250 SX-F\u003cbr\u003e\n2019 KTM 250 XC-F\u003cbr\u003e\n2020 Husqvarna FC 250\u003cbr\u003e\n2020 KTM 250 SX-F\u003cbr\u003e\n2020 KTM 250 XC-F\u003cbr\u003e\n2021 Gas-Gas EX 250F\u003cbr\u003e\n2021 Gas-Gas MC 250F\u003cbr\u003e\n2021 Husqvarna FC 250\u003cbr\u003e\n2021 KTM 250 SX-F\u003cbr\u003e\n2021 KTM 250 XC-F\u003cbr\u003e\n2022 Gas-Gas EX 250F\u003cbr\u003e\n2022 Gas-Gas MC 250F\u003cbr\u003e\n2022 Husqvarna FC 250\u003cbr\u003e\n2022 KTM 250 SX-F\u003cbr\u003e\n2022 KTM 250 XC-F","brand":"CYLINDER WORKS","offers":[{"title":"Default Title","offer_id":67550771937515,"sku":"422-51006K","price":1037.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/4ca4-60ac024045994.png?v=1790710765"},{"product_id":"cylinder-works-big-bore-cylinder-kit-80-00-mm-4-0-mm-13-3-1-compression-for-ktm-250-sx-f-and-xcf-w-part-51002-k01","title":"Cylinder Works Big Bore Cylinder Kit 80.00 mm, +4.0 mm, 13.3:1 Compression for KTM 250 SX-F and XCF-W, Part 51002-K01","description":"\u003cp\u003eUpgrade the top end of your compatible KTM four-stroke motorcycle with the Cylinder Works Big Bore Cylinder Kit, manufacturer part number 51002-K01. This complete kit features an 80.00 mm big bore cylinder, matched Vertex piston kit, and required gaskets for a high-performance rebuild. The 13.3:1 compression ratio is designed to improve engine performance while maintaining the durability and reliability expected from a properly matched top-end assembly.\u003c\/p\u003e\u003cp\u003eThe Cylinder Works cylinder is styled to closely resemble the original equipment cylinder while incorporating a nickel silicon carbide plating process for extended service life, improved wear resistance, and consistent heat management. The included piston, rings, cylinder, and gaskets are matched to help promote longevity, strong performance, and reduced engine noise. No machine work is required for installation when used with the specified application and compatible components.\u003c\/p\u003e\u003cp\u003eThis kit fits 2005 through 2012 KTM 250 SX-F models and 2006 through 2007 KTM 250 XCF-W models. It is intended for applications requiring the Cylinder Works big bore configuration rather than a standard-bore replacement. Always verify model year, engine specifications, fuel requirements, and installation clearances before assembly. The top-end gasket kit does not include valve stem seals. Replacement pistons, gaskets, and ring sets are available separately for future service and maintenance.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eComplete big bore top-end kit for compatible KTM applications\u003c\/li\u003e\n\u003cli\u003e80.00 mm cylinder bore with a +4.0 mm big bore configuration\u003c\/li\u003e\n\u003cli\u003e13.3:1 compression ratio for enhanced engine performance\u003c\/li\u003e\n\u003cli\u003eIncludes cylinder, matched Vertex piston kit, rings, and gaskets\u003c\/li\u003e\n\u003cli\u003eNickel silicon carbide plated cylinder for extended durability and service life\u003c\/li\u003e\n\u003cli\u003eCylinder appearance closely matches the original equipment design\u003c\/li\u003e\n\u003cli\u003eNo machine work required for the specified application\u003c\/li\u003e\n\u003cli\u003eMatched components help promote longevity, performance, and reduced engine noise\u003c\/li\u003e\n\u003cli\u003eTop-end gasket kit does not include valve stem seals\u003c\/li\u003e\n\u003cli\u003eFits 2005-2012 KTM 250 SX-F and 2006-2007 KTM 250 XCF-W models\u003c\/li\u003e\n\u003cli\u003eCylinder Works manufacturer part number 51002-K01\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\n2005 KTM 250 SX-F\u003cbr\u003e\n2006 KTM 250 SX-F\u003cbr\u003e\n2006 KTM 250 XCF-W\u003cbr\u003e\n2007 KTM 250 SX-F\u003cbr\u003e\n2007 KTM 250 XC-F\u003cbr\u003e\n2007 KTM 250 XCF-W\u003cbr\u003e\n2008 KTM 250 SX-F\u003cbr\u003e\n2008 KTM 250 XC-F\u003cbr\u003e\n2008 KTM 250 XCF-W\u003cbr\u003e\n2009 KTM 250 SX-F\u003cbr\u003e\n2009 KTM 250 XC-F\u003cbr\u003e\n2009 KTM 250 XCF-W\u003cbr\u003e\n2010 KTM 250 SX-F\u003cbr\u003e\n2010 KTM 250 XC-F\u003cbr\u003e\n2010 KTM 250 XCF-W\u003cbr\u003e\n2011 KTM 250 SX-F\u003cbr\u003e\n2011 KTM 250 XC-F\u003cbr\u003e\n2011 KTM 250 XCF-W\u003cbr\u003e\n2012 KTM 250 SX-F\u003cbr\u003e\n2012 KTM 250 XC-F\u003cbr\u003e\n2012 KTM 250 XCF-W\u003cbr\u003e\n2013 KTM 250 XCF-W","brand":"CYLINDER WORKS","offers":[{"title":"Default Title","offer_id":67550792319211,"sku":"422-51002K","price":982.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/b1f5-5a590bd1dc282.jpg?v=1790710929"},{"product_id":"cylinder-works-big-bore-cylinder-kit-80-00-mm-for-suzuki-rm-z250-cw41005k01","title":"Cylinder Works Big Bore Cylinder Kit 80.00 mm for Suzuki RM-Z250, CW41005K01","description":"\u003cp\u003eThe Cylinder Works CW41005K01 Big Bore Cylinder Kit is designed for Suzuki RM-Z250 motorcycles from 2019 through 2024. This complete kit uses an 80.00 mm bore and a 13.5:1 compression ratio to provide a performance-focused top-end upgrade while maintaining a stock-style appearance. It includes the cylinder, matched piston kit, and required gaskets for a comprehensive installation.\u003c\/p\u003e\u003cp\u003eEach Cylinder Works cylinder is nickel silicon carbide plated to promote extended service life, consistent performance, and improved durability. The included Vertex piston is matched to the cylinder for dependable operation, reduced engine noise, and long-term performance. The kit is engineered as a direct replacement-style solution, with no machine work needed for installation when used as specified. Always verify clearance, compression requirements, and installation procedures before assembly.\u003c\/p\u003e\u003cp\u003eFitment: This Cylinder Works kit fits 2019, 2020, 2021, 2022, 2023, and 2024 Suzuki RM-Z250 models. Replacement pistons, gaskets, and ring sets are available separately for future service. The top-end gasket kit does not include valve stem seals. Manufacturer part number: CW41005K01. Vendor part number: 422-41005K.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eComplete big bore kit for a performance-oriented top-end upgrade\u003c\/li\u003e\n\u003cli\u003e80.00 mm bore with a 13.5:1 compression ratio\u003c\/li\u003e\n\u003cli\u003eIncludes cylinder, matched Vertex piston kit, and gaskets\u003c\/li\u003e\n\u003cli\u003eNickel silicon carbide-plated cylinder promotes durability and longer service life\u003c\/li\u003e\n\u003cli\u003eStock-style cylinder appearance\u003c\/li\u003e\n\u003cli\u003eMatched piston helps support longevity, performance, and reduced engine noise\u003c\/li\u003e\n\u003cli\u003eNo machine work needed when installed according to specifications\u003c\/li\u003e\n\u003cli\u003eFits 2019-2024 Suzuki RM-Z250 motorcycles\u003c\/li\u003e\n\u003cli\u003eReplacement piston, gasket, and ring sets are available\u003c\/li\u003e\n\u003cli\u003eTop-end gasket kit does not include valve stem seals\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\n2019 Suzuki RM-Z250\u003cbr\u003e\n2020 Suzuki RM-Z250\u003cbr\u003e\n2021 Suzuki RM-Z250\u003cbr\u003e\n2022 Suzuki RM-Z250\u003cbr\u003e\n2023 Suzuki RM-Z250\u003cbr\u003e\n2024 Suzuki RM-Z250","brand":"CYLINDER WORKS","offers":[{"title":"Default Title","offer_id":67550796841195,"sku":"422-41005K","price":642.15,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/27d8-6328ae7434f13.jpg?v=1790710983"},{"product_id":"cylinder-works-41004-k02-big-bore-cylinder-kit-80-00-mm-13-5-1-compression-for-suzuki-rm-z250","title":"Cylinder Works 41004-K02 Big Bore Cylinder Kit, 80.00 mm, 13.5:1 Compression for Suzuki RM-Z250","description":"\u003cp\u003eThe Cylinder Works 41004-K02 Big Bore Cylinder Kit is a complete high-performance top-end solution for select Suzuki RM-Z250 models. Designed with an 80.00 mm bore and a 13.5:1 compression ratio, this kit is engineered to deliver increased displacement potential, responsive power, and dependable performance for motocross and off-road applications. The kit includes the cylinder, matched Vertex piston kit, and required gaskets for a comprehensive installation.\u003c\/p\u003e\u003cp\u003eThe cylinder is nickel silicon carbide plated to promote long service life, effective heat transfer, and consistent bore durability. Its stock-style appearance integrates cleanly with the original engine design, while the matched Vertex piston helps support longevity, performance, and reduced engine noise. No machine work is needed for installation when used with the intended application and compatible components. The included top-end gasket kit does not include valve stem seals.\u003c\/p\u003e\u003cp\u003eThis Cylinder Works kit fits 2013 through 2018 Suzuki RM-Z250 motorcycles. It is intended as a complete big bore kit rather than a standard-bore replacement cylinder. Replacement pistons, gaskets, and ring sets are available separately for future service needs. Always verify engine condition, fuel requirements, tuning, and installation specifications before use.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eComplete big bore kit for increased engine displacement potential\u003c\/li\u003e\n\u003cli\u003e80.00 mm bore with a 13.5:1 compression ratio\u003c\/li\u003e\n\u003cli\u003eIncludes nickel silicon carbide plated cylinder, matched Vertex piston kit, and gaskets\u003c\/li\u003e\n\u003cli\u003eMatched Vertex piston helps support durability, performance, and reduced engine noise\u003c\/li\u003e\n\u003cli\u003eStock-style cylinder appearance for clean engine integration\u003c\/li\u003e\n\u003cli\u003eNo machine work needed for the intended application\u003c\/li\u003e\n\u003cli\u003eTop-end gasket kit does not include valve stem seals\u003c\/li\u003e\n\u003cli\u003eReplacement pistons, gaskets, and ring sets are available\u003c\/li\u003e\n\u003cli\u003eFits 2013-2018 Suzuki RM-Z250 models\u003c\/li\u003e\n\u003cli\u003eBrand: Cylinder Works\u003c\/li\u003e\n\u003cli\u003eManufacturer part number: 41004-K02\u003c\/li\u003e\n\u003cli\u003eVendor part number: 41004-K02\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\n2013 Suzuki RM-Z250\u003cbr\u003e\n2014 Suzuki RM-Z250\u003cbr\u003e\n2015 Suzuki RM-Z250\u003cbr\u003e\n2016 Suzuki RM-Z250\u003cbr\u003e\n2017 Suzuki RM-Z250\u003cbr\u003e\n2018 Suzuki RM-Z250","brand":"CYLINDER WORKS","offers":[{"title":"Default Title","offer_id":67550801101035,"sku":"422-41004K2","price":799.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/57b6-5a5908298d8e9.jpg?v=1790711073"},{"product_id":"cylinder-works-big-bore-cylinder-kit-41002-k01-for-2006-2009-suzuki-lt-r450-quadracer","title":"Cylinder Works Big Bore Cylinder Kit 41002-K01 for 2006-2009 Suzuki LT-R450 Quadracer","description":"\u003cp\u003eUpgrade the top end of your Suzuki LT-R450 Quadracer with the Cylinder Works Big Bore Cylinder Kit, manufacturer part number 41002-K01. This complete kit features a 98.00 mm bore with a 2.5 mm overbore and an 11.7:1 compression ratio, delivering a performance-focused replacement for the original cylinder assembly. The kit includes the cylinder, matched piston kit, and required gaskets for a straightforward installation.\u003c\/p\u003e\u003cp\u003eThe Cylinder Works cylinder is nickel silicon carbide plated for extended service life, consistent heat transfer, and dependable performance. Its stock-style appearance helps maintain an original equipment look while the matched Vertex piston is selected to support longevity, efficient operation, reduced engine noise, and reliable fitment. No machine work is needed for installation when used with the appropriate compatible engine components.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e This kit fits 2006, 2007, 2008, and 2009 Suzuki LT-R450 Quadracer models. It is designed as a complete big bore solution for riders and technicians replacing worn top-end components or seeking increased displacement and compression. The top-end gasket kit does not include valve stem seals. Replacement pistons, gaskets, and ring sets are available separately for future service requirements.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eComplete big bore cylinder kit for Suzuki LT-R450 Quadracer applications\u003c\/li\u003e\n\u003cli\u003e98.00 mm bore with a 2.5 mm overbore\u003c\/li\u003e\n\u003cli\u003e11.7:1 compression ratio for performance-oriented engine operation\u003c\/li\u003e\n\u003cli\u003eIncludes nickel silicon carbide-plated cylinder, Vertex piston kit, and gaskets\u003c\/li\u003e\n\u003cli\u003eMatched Vertex piston supports longevity, performance, and reduced engine noise\u003c\/li\u003e\n\u003cli\u003eStock-style cylinder appearance\u003c\/li\u003e\n\u003cli\u003eNo machine work needed for installation with compatible components\u003c\/li\u003e\n\u003cli\u003eTop-end gasket kit does not include valve stem seals\u003c\/li\u003e\n\u003cli\u003eReplacement piston, gasket, and ring sets are available\u003c\/li\u003e\n\u003cli\u003eFits 2006-2009 Suzuki LT-R450 Quadracer models\u003c\/li\u003e\n\u003cli\u003eBrand: Cylinder Works\u003c\/li\u003e\n\u003cli\u003eManufacturer part number: 41002-K01\u003c\/li\u003e\n\u003cli\u003eVendor part number: 422-41002K\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\n2006 Suzuki Lt-R450 Quadracer\u003cbr\u003e\n2007 Suzuki Lt-R450 Quadracer\u003cbr\u003e\n2008 Suzuki Lt-R450 Quadracer\u003cbr\u003e\n2009 Suzuki Lt-R450 Quadracer","brand":"CYLINDER WORKS","offers":[{"title":"Default Title","offer_id":67550813061355,"sku":"422-41002K","price":858.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/3b4a-5a5907a5a8f18.jpg?v=1790711145"},{"product_id":"cylinder-works-big-bore-cylinder-kit-94-mm-4-0-mm-11-3-1-for-arctic-cat-kawasaki-and-suzuki-part-41001-k01","title":"Cylinder Works Big Bore Cylinder Kit 94 mm, +4.0 mm, 11.3:1 for Arctic Cat, Kawasaki and Suzuki | Part 41001-K01","description":"\u003cp\u003eUpgrade your engine with the Cylinder Works 41001-K01 Big Bore Cylinder Kit, designed for select Arctic Cat, Kawasaki and Suzuki applications. This complete kit features a 94 mm big bore cylinder with a +4.0 mm overbore and an 11.3:1 compression ratio for improved displacement and performance. The cylinder is styled to look like the original equipment component while offering the durability advantages of nickel silicon carbide plating.\u003c\/p\u003e\u003cp\u003eThe kit includes the cylinder, matched Vertex piston kit and required gaskets for a comprehensive top-end rebuild. Cylinder Works matches the piston and cylinder components to support reliable operation, long service life, strong performance and reduced engine noise. No machine work is needed for installation when used with the intended application and compatible components. The top-end gasket kit does not include valve stem seals.\u003c\/p\u003e\u003cp\u003eThis Cylinder Works kit fits the 2003-2006 Kawasaki KFX 400, 2004-2008 Arctic Cat 400 DVX and 2005 Suzuki DR-Z400S. Confirm vehicle year, model and engine configuration before ordering. Replacement pistons, gaskets and ring sets are available separately, while this kit is intended as a complete big bore top-end solution rather than a standard-bore replacement cylinder.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eComplete 94 mm big bore cylinder kit with +4.0 mm overbore\u003c\/li\u003e\n\u003cli\u003e11.3:1 compression ratio for increased engine displacement and performance\u003c\/li\u003e\n\u003cli\u003eIncludes cylinder, matched Vertex piston kit and gaskets\u003c\/li\u003e\n\u003cli\u003eNickel silicon carbide plated cylinder for extended service life\u003c\/li\u003e\n\u003cli\u003eCylinder design closely matches the stock appearance\u003c\/li\u003e\n\u003cli\u003eNo machine work needed for intended applications\u003c\/li\u003e\n\u003cli\u003eMatched piston and cylinder components help support longevity, performance and reduced engine noise\u003c\/li\u003e\n\u003cli\u003eTop-end gasket kit does not include valve stem seals\u003c\/li\u003e\n\u003cli\u003eReplacement pistons, gaskets and ring sets are available separately\u003c\/li\u003e\n\u003cli\u003eFits 2003-2006 Kawasaki KFX 400, 2004-2008 Arctic Cat 400 DVX and 2005 Suzuki DR-Z400S\u003c\/li\u003e\n\u003cli\u003eManufacturer: Cylinder Works\u003c\/li\u003e\n\u003cli\u003eVendor Part Number: 41001-K01\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\n2000 Suzuki DR-Z400\u003cbr\u003e\n2000 Suzuki DR-Z400E Non CA Model\u003cbr\u003e\n2000 Suzuki DR-Z400S\u003cbr\u003e\n2001 Suzuki DR-Z400\u003cbr\u003e\n2001 Suzuki DR-Z400E Non CA Model\u003cbr\u003e\n2001 Suzuki DR-Z400S\u003cbr\u003e\n2002 Suzuki DR-Z400\u003cbr\u003e\n2002 Suzuki DR-Z400E Non CA Model\u003cbr\u003e\n2002 Suzuki DR-Z400S\u003cbr\u003e\n2003 Kawasaki KFX 400\u003cbr\u003e\n2003 Kawasaki KLX400R\u003cbr\u003e\n2003 Suzuki DR-Z400\u003cbr\u003e\n2003 Suzuki DR-Z400E Non CA Model\u003cbr\u003e\n2003 Suzuki DR-Z400S\u003cbr\u003e\n2003 Suzuki Lt-Z400 QuadSport Z\u003cbr\u003e\n2004 Arctic Cat 400 DVX\u003cbr\u003e\n2004 Kawasaki KFX 400\u003cbr\u003e\n2004 Kawasaki KLX400R CA MODEL\u003cbr\u003e\n2004 Kawasaki KLX400R NON CA MODEL\u003cbr\u003e\n2004 Suzuki DR-Z400\u003cbr\u003e\n2004 Suzuki DR-Z400E CA Model\u003cbr\u003e\n2004 Suzuki DR-Z400E Non CA Model\u003cbr\u003e\n2004 Suzuki DR-Z400S\u003cbr\u003e\n2004 Suzuki Lt-Z400 QuadSport Z\u003cbr\u003e\n2005 Arctic Cat 400 DVX\u003cbr\u003e\n2005 Kawasaki KFX 400\u003cbr\u003e\n2005 Suzuki DR-Z400E CA Model\u003cbr\u003e\n2005 Suzuki DR-Z400E Non CA Model\u003cbr\u003e\n2005 Suzuki DR-Z400S\u003cbr\u003e\n2005 Suzuki DR-Z400SM\u003cbr\u003e\n2005 Suzuki Lt-Z400 QuadSport Z\u003cbr\u003e\n2006 Arctic Cat 400 DVX\u003cbr\u003e\n2006 Kawasaki KFX 400\u003cbr\u003e\n2006 Suzuki DR-Z400E CA Model\u003cbr\u003e\n2006 Suzuki DR-Z400E Non CA Model\u003cbr\u003e\n2006 Suzuki DR-Z400S\u003cbr\u003e\n2006 Suzuki DR-Z400SM\u003cbr\u003e\n2006 Suzuki Lt-Z400 QuadSport Z\u003cbr\u003e\n2007 Arctic Cat 400 DVX\u003cbr\u003e\n2007 Suzuki DR-Z400E CA Model\u003cbr\u003e\n2007 Suzuki DR-Z400E Non CA Model\u003cbr\u003e\n2007 Suzuki DR-Z400S\u003cbr\u003e\n2007 Suzuki DR-Z400SM\u003cbr\u003e\n2007 Suzuki Lt-Z400 QuadSport Z\u003cbr\u003e\n2008 Arctic Cat 400 DVX\u003cbr\u003e\n2008 Suzuki DR-Z400S\u003cbr\u003e\n2008 Suzuki DR-Z400SM\u003cbr\u003e\n2008 Suzuki Lt-Z400 QuadSport Z\u003cbr\u003e\n2009 Suzuki DR-Z400S\u003cbr\u003e\n2009 Suzuki DR-Z400SM\u003cbr\u003e\n2009 Suzuki Lt-Z400 QuadSport Z\u003cbr\u003e\n2010 Suzuki DR-Z400S\u003cbr\u003e\n2010 Suzuki DR-Z400SM\u003cbr\u003e\n2011 Suzuki DR-Z400S\u003cbr\u003e\n2011 Suzuki DR-Z400SM\u003cbr\u003e\n2012 Suzuki DR-Z400S\u003cbr\u003e\n2012 Suzuki DR-Z400SM\u003cbr\u003e\n2012 Suzuki Lt-Z400 QuadSport Z\u003cbr\u003e\n2013 Suzuki DR-Z400S\u003cbr\u003e\n2013 Suzuki DR-Z400SM\u003cbr\u003e\n2013 Suzuki Lt-Z400 QuadSport Z\u003cbr\u003e\n2014 Suzuki DR-Z400S\u003cbr\u003e\n2014 Suzuki DR-Z400SM\u003cbr\u003e\n2014 Suzuki Lt-Z400 QuadSport Z\u003cbr\u003e\n2015 Suzuki DR-Z400S\u003cbr\u003e\n2015 Suzuki DR-Z400SM\u003cbr\u003e\n2016 Suzuki DR-Z400S\u003cbr\u003e\n2016 Suzuki DR-Z400SM\u003cbr\u003e\n2017 Suzuki DR-Z400S\u003cbr\u003e\n2017 Suzuki DR-Z400SM\u003cbr\u003e\n2018 Suzuki DR-Z400S\u003cbr\u003e\n2018 Suzuki DR-Z400SM\u003cbr\u003e\n2019 Suzuki DR-Z400S\u003cbr\u003e\n2019 Suzuki DR-Z400SM\u003cbr\u003e\n2020 Suzuki DR-Z400S\u003cbr\u003e\n2020 Suzuki DR-Z400SM\u003cbr\u003e\n2021 Suzuki DR-Z400S\u003cbr\u003e\n2021 Suzuki DR-Z400SM\u003cbr\u003e\n2022 Suzuki DR-Z400S\u003cbr\u003e\n2022 Suzuki DR-Z400SM\u003cbr\u003e\n2023 Suzuki DR-Z400S\u003cbr\u003e\n2023 Suzuki DR-Z400SM\u003cbr\u003e\n2024 Suzuki DR-Z400SM","brand":"CYLINDER WORKS","offers":[{"title":"Default Title","offer_id":67550827413739,"sku":"422-41001K","price":837.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/0ef2-5a59076624cfd.jpg?v=1790711221"},{"product_id":"cylinder-works-big-bore-cylinder-kit-81-00-mm-14-1-1-compression-for-kawasaki-kx250f-and-kx250x","title":"Cylinder Works Big Bore Cylinder Kit 81.00 mm, 14.1:1 Compression for Kawasaki KX250F and KX250X","description":"\u003cp\u003eUpgrade the top end of your Kawasaki motocross or cross-country motorcycle with the Cylinder Works Big Bore Cylinder Kit, manufacturer part number CW31017K01. This complete kit features an 81.00 mm bore and a 14.1:1 compression ratio for increased displacement and strong engine performance. It is designed as a direct replacement-style solution for compatible Kawasaki models and includes the essential components needed for installation.\u003c\/p\u003e\u003cp\u003eThe kit includes a nickel silicon carbide-plated cylinder, Vertex piston kit, and required top-end gaskets. The cylinder has a stock-like appearance while the durable plating helps promote long service life, consistent heat transfer, and reliable operation. Cylinder Works matches the cylinder and Vertex piston to support longevity, performance, and reduced engine noise. No machine work is needed for installation when used with the applicable fitment and properly prepared engine components.\u003c\/p\u003e\u003cp\u003eFitment includes the 2021 Kawasaki KX250X, 2021 Kawasaki KX250F, 2022 Kawasaki KX250F, 2022 Kawasaki KX250X, 2023 Kawasaki KX250F, 2023 Kawasaki KX250X, 2024 Kawasaki KX250F, and 2024 Kawasaki KX250X. The top-end gasket kit does not include valve stem seals. Replacement pistons, gaskets, and ring sets are available separately for future service requirements. Verify model year, bore specifications, compression requirements, and installation procedures before ordering.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eComplete big bore kit with cylinder, Vertex piston kit, and gaskets\u003c\/li\u003e\n\u003cli\u003e81.00 mm bore with a 14.1:1 compression ratio\u003c\/li\u003e\n\u003cli\u003eNickel silicon carbide-plated cylinder promotes durability and long service life\u003c\/li\u003e\n\u003cli\u003eStock-like cylinder appearance for a factory-style installation\u003c\/li\u003e\n\u003cli\u003eMatched Cylinder Works cylinder and Vertex piston support performance, longevity, and reduced engine noise\u003c\/li\u003e\n\u003cli\u003eNo machine work needed when installed with compatible components and according to application requirements\u003c\/li\u003e\n\u003cli\u003eFits 2021-2024 Kawasaki KX250F and KX250X models as specified\u003c\/li\u003e\n\u003cli\u003eTop-end gasket kit does not include valve stem seals\u003c\/li\u003e\n\u003cli\u003eReplacement piston, gasket, and ring sets are available separately\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\n2021 Kawasaki KX250F\u003cbr\u003e\n2021 Kawasaki KX250X\u003cbr\u003e\n2022 Kawasaki KX250F\u003cbr\u003e\n2022 Kawasaki KX250X\u003cbr\u003e\n2023 Kawasaki KX250F\u003cbr\u003e\n2023 Kawasaki KX250X\u003cbr\u003e\n2024 Kawasaki KX250F\u003cbr\u003e\n2024 Kawasaki KX250X","brand":"CYLINDER WORKS","offers":[{"title":"Default Title","offer_id":67550838227179,"sku":"422-31017K","price":772.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/6df8-6a5e8455d4cdf.jpg?v=1790711284"},{"product_id":"cylinder-works-big-bore-cylinder-kit-31011-k01-for-2009-2015-kawasaki-kx450f-98-00-mm-12-8-1-compression","title":"Cylinder Works Big Bore Cylinder Kit 31011-K01 for 2009–2015 Kawasaki KX450F, 98.00 mm, 12.8:1 Compression","description":"\u003cp\u003eUpgrade the top-end performance of your Kawasaki KX450F with the Cylinder Works Big Bore Cylinder Kit, manufacturer part number 31011-K01 and vendor part number 422-31011K. Designed as a complete big bore solution, this kit includes a cylinder, matched piston kit, and required gaskets for a reliable replacement or performance rebuild. The 98.00 mm bore and 12.8:1 compression ratio are engineered to provide increased displacement and strong engine performance while maintaining a stock-style appearance.\u003c\/p\u003e\u003cp\u003eThe cylinder is nickel silicon carbide plated to promote long service life, consistent heat transfer, and durable wear resistance. Cylinder Works matches the cylinder with a Vertex piston to support longevity, performance, and reduced engine noise. The kit is designed for standard engine installations without machining, helping simplify the top-end replacement process. Always verify the engine configuration, compression requirements, and installation specifications before assembly.\u003c\/p\u003e\u003cp\u003eFeature: Complete big bore kit with cylinder, piston kit, and gaskets. The included top-end gasket kit does not include valve stem seals. Replacement pistons, gaskets, and ring sets are available separately for future maintenance. The cylinder is styled to closely resemble the original equipment component while offering a larger bore configuration.\u003c\/p\u003e\u003cp\u003eThis Cylinder Works kit fits 2009, 2010, 2011, 2012, 2013, 2014, and 2015 Kawasaki KX450F motorcycles. It is intended for the listed applications and should be installed according to the manufacturer's service procedures. The kit is not a direct replacement for a standard-bore cylinder; confirm compatibility with the motorcycle's existing engine components before purchase.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eComplete big bore kit includes cylinder, piston kit, and gaskets\u003c\/li\u003e\n\u003cli\u003e98.00 mm bore with a 12.8:1 compression ratio\u003c\/li\u003e\n\u003cli\u003eMatched Vertex piston supports longevity, performance, and reduced engine noise\u003c\/li\u003e\n\u003cli\u003eNickel silicon carbide-plated cylinder promotes durable, long-lasting operation\u003c\/li\u003e\n\u003cli\u003eStock-style cylinder appearance\u003c\/li\u003e\n\u003cli\u003eDesigned for installation without machining\u003c\/li\u003e\n\u003cli\u003eTop-end gasket kit does not include valve stem seals\u003c\/li\u003e\n\u003cli\u003eReplacement piston, gasket, and ring sets are available\u003c\/li\u003e\n\u003cli\u003eFits 2009–2015 Kawasaki KX450F models\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\n2009 Kawasaki KX450F\u003cbr\u003e\n2010 Kawasaki KX450F\u003cbr\u003e\n2011 Kawasaki KX450F\u003cbr\u003e\n2012 Kawasaki KX450F\u003cbr\u003e\n2013 Kawasaki KX450F\u003cbr\u003e\n2014 Kawasaki KX450F\u003cbr\u003e\n2015 Kawasaki KX450F","brand":"CYLINDER WORKS","offers":[{"title":"Default Title","offer_id":67550850318571,"sku":"422-31011K","price":786.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/d8f1-60ac022d59b21.png?v=1790711354"},{"product_id":"cylinder-works-big-bore-cylinder-kit-80-00-mm-12-6-1-compression-part-31001-k01-for-kawasaki-kx250f-and-suzuki-rm-z250","title":"Cylinder Works Big Bore Cylinder Kit 80.00 mm, 12.6:1 Compression, Part 31001-K01 for Kawasaki KX250F and Suzuki RM-Z250","description":"\u003cp\u003eUpgrade the top end of your motorcycle with the Cylinder Works Big Bore Cylinder Kit, manufacturer part number 31001-K01. Designed with an 80.00 mm bore and 12.6:1 compression ratio, this complete kit is engineered for increased displacement and dependable performance while maintaining a stock-like appearance. The kit includes the cylinder, matched piston kit, and required top-end gaskets for a streamlined installation.\u003c\/p\u003e\u003cp\u003eNickel silicon carbide plating helps promote long cylinder life, consistent heat management, and durable bore performance. Cylinder Works matches the cylinder with a Vertex piston to support longevity, strong engine performance, and reduced operating noise. The standard-style exterior allows the cylinder to blend with the original engine design, while the included components help eliminate the need to source separate piston and gasket parts.\u003c\/p\u003e\u003cp\u003eFeature: Complete big bore kit with cylinder, piston kit, and gaskets. Feature: 80.00 mm bore with a 12.6:1 compression ratio. Feature: Nickel silicon carbide plated cylinder for extended service life. Feature: Matched Vertex piston supports performance, durability, and reduced engine noise. Feature: Stock-like cylinder appearance. Feature: Designed for installation without machine work when used as specified. Feature: Replacement pistons, gaskets, and ring sets are available separately. The top-end gasket kit does not include valve stem seals.\u003c\/p\u003e\u003cp\u003eThis Cylinder Works kit fits 2004 through 2008 Kawasaki KX250F models and 2004 through 2006 Suzuki RM-Z250 models. Verify engine specifications, compression requirements, and year-specific fitment before installation. Manufacturer part number: 31001-K01. Vendor part number: 422-31001K.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eComplete big bore kit includes the cylinder, piston kit, and gaskets\u003c\/li\u003e\n\u003cli\u003e80.00 mm bore with a 12.6:1 compression ratio\u003c\/li\u003e\n\u003cli\u003eNickel silicon carbide plated cylinder promotes long service life\u003c\/li\u003e\n\u003cli\u003eMatched Vertex piston supports durability, performance, and reduced engine noise\u003c\/li\u003e\n\u003cli\u003eStock-like cylinder appearance\u003c\/li\u003e\n\u003cli\u003eDesigned for installation without machine work when properly specified\u003c\/li\u003e\n\u003cli\u003eReplacement piston, gasket, and ring sets are available\u003c\/li\u003e\n\u003cli\u003eTop-end gasket kit does not include valve stem seals\u003c\/li\u003e\n\u003cli\u003eFits 2004-2008 Kawasaki KX250F and 2004-2006 Suzuki RM-Z250 models\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\n2004 Kawasaki KX250F\u003cbr\u003e\n2004 Suzuki RM-Z250\u003cbr\u003e\n2005 Kawasaki KX250F\u003cbr\u003e\n2005 Suzuki RM-Z250\u003cbr\u003e\n2006 Kawasaki KX250F\u003cbr\u003e\n2006 Suzuki RM-Z250\u003cbr\u003e\n2007 Kawasaki KX250F\u003cbr\u003e\n2008 Kawasaki KX250F","brand":"CYLINDER WORKS","offers":[{"title":"Default Title","offer_id":67550861557995,"sku":"422-31001K","price":790.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/b859-5a5901f96cec0.jpg?v=1790711434"},{"product_id":"cylinder-works-big-bore-cylinder-kit-98-00-mm-12-0-1-compression-for-yamaha-yfz450-part-23001-k01","title":"Cylinder Works Big Bore Cylinder Kit 98.00 mm, 12.0:1 Compression for Yamaha YFZ450, Part 23001-K01","description":"\u003cp\u003eUpgrade the top-end performance of your Yamaha YFZ450 with the Cylinder Works Big Bore Cylinder Kit. Designed with a 98.00 mm bore and 12.0:1 compression ratio, this complete kit includes the cylinder, matched piston kit, and gaskets needed for a dependable installation. The cylinder maintains a stock-style appearance while providing increased displacement and performance potential.\u003c\/p\u003e\u003cp\u003eEach Cylinder Works cylinder is nickel silicon carbide plated for extended service life, consistent heat transfer, and reliable durability. The kit is matched with a Vertex piston to support long-term performance, reduce engine noise, and provide a precise fit. No machine work is required for installation when used with the appropriate application and components.\u003c\/p\u003e\u003cp\u003eThis kit fits 2004–2009 and 2012–2013 Yamaha YFZ450 models. The top-end gasket kit does not include valve stem seals. Cylinder Works manufacturer and vendor part number 23001-K01 is intended as a complete big bore replacement solution. Replacement pistons, gaskets, and ring sets are also available separately for future maintenance.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e98.00 mm big bore cylinder kit with 12.0:1 compression ratio\u003c\/li\u003e\n\u003cli\u003eComplete kit includes cylinder, Vertex piston kit, and gaskets\u003c\/li\u003e\n\u003cli\u003eNickel silicon carbide plated cylinder supports extended service life\u003c\/li\u003e\n\u003cli\u003eStock-style cylinder appearance\u003c\/li\u003e\n\u003cli\u003eMatched Vertex piston helps promote longevity, performance, and reduced engine noise\u003c\/li\u003e\n\u003cli\u003eNo machine work required for installation when properly fitted\u003c\/li\u003e\n\u003cli\u003eTop-end gasket kit does not include valve stem seals\u003c\/li\u003e\n\u003cli\u003eFits 2004–2009 and 2012–2013 Yamaha YFZ450 models\u003c\/li\u003e\n\u003cli\u003eBrand: Cylinder Works\u003c\/li\u003e\n\u003cli\u003eManufacturer and vendor part number: 23001-K01\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\n2004 Yamaha YFZ450\u003cbr\u003e\n2005 Yamaha YFZ450\u003cbr\u003e\n2006 Yamaha YFZ450\u003cbr\u003e\n2007 Yamaha YFZ450\u003cbr\u003e\n2008 Yamaha YFZ450\u003cbr\u003e\n2009 Yamaha YFZ450\u003cbr\u003e\n2012 Yamaha YFZ450\u003cbr\u003e\n2013 Yamaha YFZ450","brand":"CYLINDER WORKS","offers":[{"title":"Default Title","offer_id":67550863753451,"sku":"422-23001K","price":873.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/e833-5a58fac8f288d.jpg?v=1790711489"},{"product_id":"cylinder-works-big-bore-cylinder-kit-99-00-mm-12-8-1-compression-for-yamaha-yz450f-yz450fx-and-wr450f","title":"Cylinder Works Big Bore Cylinder Kit 99.00 mm, 12.8:1 Compression for Yamaha YZ450F, YZ450FX and WR450F","description":"\u003cp\u003eUpgrade your Yamaha off-road motorcycle with the Cylinder Works Big Bore Cylinder Kit, manufacturer part number CW21014K01 and vendor part number 422-21014K. This complete kit is designed for a 99.00 mm big bore configuration with a 12.8:1 compression ratio, delivering a reliable top-end replacement for compatible Yamaha 450 models. It includes the cylinder, matched piston kit and required gaskets for a streamlined installation.\u003c\/p\u003e\u003cp\u003eThe cylinder features a nickel silicon carbide plated bore for extended service life, consistent performance and improved durability. Cylinder Works matches the cylinder with a Vertex piston to support longevity, performance and reduced engine noise. The cylinder maintains an OEM-style appearance while providing a performance-oriented big bore upgrade. No machine work is needed for installation when used with the correct compatible application.\u003c\/p\u003e\u003cp\u003eFeature: Complete big bore kit with cylinder, piston kit and gaskets. Feature: 99.00 mm bore with a 12.8:1 compression ratio. Feature: Nickel silicon carbide plated cylinder for long-lasting durability. Feature: Matched Vertex piston helps support reliable performance and reduced engine noise. Feature: OEM-style cylinder appearance. Feature: No machine work required for the intended application. Feature: Replacement pistons, gaskets and ring sets are available separately. The top-end gasket kit does not include valve stem seals.\u003c\/p\u003e\u003cp\u003eThis Cylinder Works kit fits the 2020-2022 Yamaha YZ450F, 2021-2022 Yamaha YZ450FX, and 2021-2022 Yamaha WR450F, as well as the 2023 Yamaha YZ450FX and WR450F. Verify the motorcycle year, model and engine configuration before installation to ensure proper fitment. Manufacturer: Cylinder Works. Manufacturer part number: CW21014K01. Vendor part number: 422-21014K.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eComplete big bore kit includes cylinder, piston kit and gaskets\u003c\/li\u003e\n\u003cli\u003e99.00 mm bore with a 12.8:1 compression ratio\u003c\/li\u003e\n\u003cli\u003eNickel silicon carbide plated cylinder supports extended service life\u003c\/li\u003e\n\u003cli\u003eMatched Vertex piston helps promote longevity, performance and reduced engine noise\u003c\/li\u003e\n\u003cli\u003eOEM-style cylinder appearance\u003c\/li\u003e\n\u003cli\u003eNo machine work required for the intended application\u003c\/li\u003e\n\u003cli\u003eReplacement pistons, gaskets and ring sets are available separately\u003c\/li\u003e\n\u003cli\u003eTop-end gasket kit does not include valve stem seals\u003c\/li\u003e\n\u003cli\u003eFits 2020-2022 Yamaha YZ450F, 2021-2022 Yamaha YZ450FX, and 2021-2022 Yamaha WR450F, plus 2023 Yamaha YZ450FX and WR450F\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\n2020 Yamaha YZ450F\u003cbr\u003e\n2021 Yamaha WR450F\u003cbr\u003e\n2021 Yamaha YZ450F\u003cbr\u003e\n2021 Yamaha YZ450FX\u003cbr\u003e\n2022 Yamaha WR450F\u003cbr\u003e\n2022 Yamaha YZ450F\u003cbr\u003e\n2022 Yamaha YZ450FX\u003cbr\u003e\n2023 Yamaha WR450F\u003cbr\u003e\n2023 Yamaha YZ450FX","brand":"CYLINDER WORKS","offers":[{"title":"Default Title","offer_id":67550866997483,"sku":"422-21014K","price":740.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/4ba1-6499e4385e0d1.jpg?v=1790711569"},{"product_id":"cylinder-works-big-bore-cylinder-kit-80-00-mm-13-8-1-compression-for-yamaha-yz250f-yz250fx-and-wr250f","title":"Cylinder Works Big Bore Cylinder Kit 80.00 mm, 13.8:1 Compression for Yamaha YZ250F, YZ250FX and WR250F","description":"\u003cp\u003eUpgrade the top-end performance of your compatible Yamaha motorcycle with the Cylinder Works Big Bore Cylinder Kit, manufacturer part number CW21013K01 and vendor part number 422-21013K. This complete kit features an 80.00 mm big bore configuration and a 13.8:1 compression ratio, providing a matched cylinder and piston combination designed for strong performance, dependable service life, and reduced engine noise.\u003c\/p\u003e\u003cp\u003eThe kit includes the cylinder, piston kit, and required gaskets for a comprehensive top-end replacement. The cylinder is Nickel Silicon Carbide plated for enhanced durability and longer service life while maintaining a stock-style appearance. No machine work is needed for installation when used with the specified application and components. The top-end gasket kit does not include valve stem seals.\u003c\/p\u003e\u003cp\u003eDesigned for fitment on select Yamaha 250 models, this Cylinder Works kit fits the 2019-2022 Yamaha YZ250F, 2020-2022 Yamaha YZ250FX, and 2020-2022 Yamaha WR250F. Confirm the model year and application before installation. Replacement pistons, gaskets, and ring sets are available separately for future maintenance. This kit is intended as a complete big bore solution rather than a standard-bore replacement cylinder.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eComplete big bore cylinder kit with cylinder, piston kit, and gaskets\u003c\/li\u003e\n\u003cli\u003e80.00 mm big bore configuration for compatible Yamaha 250 models\u003c\/li\u003e\n\u003cli\u003e13.8:1 compression ratio for performance-focused applications\u003c\/li\u003e\n\u003cli\u003eMatched Cylinder Works cylinder and Vertex piston components\u003c\/li\u003e\n\u003cli\u003eNickel Silicon Carbide plating for extended cylinder life\u003c\/li\u003e\n\u003cli\u003eStock-style cylinder appearance\u003c\/li\u003e\n\u003cli\u003eNo machine work needed for specified applications\u003c\/li\u003e\n\u003cli\u003eTop-end gasket kit does not include valve stem seals\u003c\/li\u003e\n\u003cli\u003eReplacement pistons, gaskets, and ring sets available\u003c\/li\u003e\n\u003cli\u003eFits 2019-2022 Yamaha YZ250F, 2020-2022 Yamaha YZ250FX, and 2020-2022 Yamaha WR250F\u003c\/li\u003e\n\u003cli\u003eBrand: Cylinder Works\u003c\/li\u003e\n\u003cli\u003eManufacturer part number: CW21013K01\u003c\/li\u003e\n\u003cli\u003eVendor part number: 422-21013K\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\n2019 Yamaha YZ250F\u003cbr\u003e\n2020 Yamaha WR250F\u003cbr\u003e\n2020 Yamaha YZ250F\u003cbr\u003e\n2020 Yamaha YZ250FX\u003cbr\u003e\n2021 Yamaha WR250F\u003cbr\u003e\n2021 Yamaha YZ250F\u003cbr\u003e\n2021 Yamaha YZ250FX\u003cbr\u003e\n2022 Yamaha WR250F\u003cbr\u003e\n2022 Yamaha YZ250F\u003cbr\u003e\n2022 Yamaha YZ250FX\u003cbr\u003e\n2023 Yamaha WR250F\u003cbr\u003e\n2023 Yamaha YZ250F\u003cbr\u003e\n2023 Yamaha YZ250FX\u003cbr\u003e\n2024 Yamaha WR250F\u003cbr\u003e\n2024 Yamaha YZ250F\u003cbr\u003e\n2024 Yamaha YZ250FX","brand":"CYLINDER WORKS","offers":[{"title":"Default Title","offer_id":67550869946603,"sku":"422-21013K","price":819.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/cb0d-6499e42c50625.jpg?v=1790711649"},{"product_id":"cylinder-works-big-bore-cylinder-kit-80-00-mm-3-0-mm-13-5-1-for-yamaha-yz250f-and-wr250f","title":"Cylinder Works Big Bore Cylinder Kit 80.00 mm, +3.0 mm, 13.5:1 for Yamaha YZ250F and WR250F","description":"\u003cp\u003eThe Cylinder Works Big Bore Cylinder Kit is a complete high-performance top-end solution for select Yamaha YZ250F and WR250F models. Designed with an 80.00 mm bore and a 13.5:1 compression ratio, this kit increases displacement by 3.0 mm over the standard bore while maintaining a stock-style appearance. Cylinder Works part number 21010-K01 is engineered for reliable fitment and consistent performance on compatible Yamaha engines.\u003c\/p\u003e\u003cp\u003eIncluded components feature the cylinder, matched Vertex piston kit, and required gaskets for installation. The piston and cylinder are precision matched to support longevity, responsive power, and reduced engine noise. The nickel-silicon-carbide-plated cylinder provides a durable bore surface designed for extended service life, while the stock-like exterior helps preserve the original appearance of the motorcycle. No machine work is needed for installation when used with the specified compatible application and components.\u003c\/p\u003e\u003cp\u003eThis Cylinder Works kit fits 2014 through 2018 Yamaha YZ250F models and 2015 through 2019 Yamaha WR250F models, subject to the vehicle’s exact year and configuration. The included top-end gasket kit does not include valve stem seals. Replacement pistons, gaskets, and ring sets are available separately for future servicing. Verify engine specifications and model fitment before installation to ensure proper compatibility.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eComplete big bore cylinder kit with cylinder, piston kit, and gaskets\u003c\/li\u003e\n\u003cli\u003e80.00 mm bore with a 3.0 mm increase over standard bore\u003c\/li\u003e\n\u003cli\u003e13.5:1 compression ratio for enhanced engine performance\u003c\/li\u003e\n\u003cli\u003eMatched Vertex piston for durability, performance, and reduced engine noise\u003c\/li\u003e\n\u003cli\u003eNickel-silicon-carbide-plated cylinder for extended service life\u003c\/li\u003e\n\u003cli\u003eStock-style cylinder appearance\u003c\/li\u003e\n\u003cli\u003eNo machine work needed for specified applications\u003c\/li\u003e\n\u003cli\u003eTop-end gasket kit does not include valve stem seals\u003c\/li\u003e\n\u003cli\u003eFits 2014-2018 Yamaha YZ250F and 2015-2019 Yamaha WR250F models\u003c\/li\u003e\n\u003cli\u003eCylinder Works part number 21010-K01\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\n2014 Yamaha YZ250F\u003cbr\u003e\n2015 Yamaha WR250F\u003cbr\u003e\n2015 Yamaha YZ250F\u003cbr\u003e\n2015 Yamaha YZ250FX\u003cbr\u003e\n2016 Yamaha WR250F\u003cbr\u003e\n2016 Yamaha YZ250F\u003cbr\u003e\n2016 Yamaha YZ250FX\u003cbr\u003e\n2017 Yamaha WR250F\u003cbr\u003e\n2017 Yamaha YZ250F\u003cbr\u003e\n2017 Yamaha YZ250FX\u003cbr\u003e\n2018 Yamaha WR250F\u003cbr\u003e\n2018 Yamaha YZ250F\u003cbr\u003e\n2018 Yamaha YZ250FX\u003cbr\u003e\n2019 Yamaha WR250F\u003cbr\u003e\n2019 Yamaha YZ250FX","brand":"CYLINDER WORKS","offers":[{"title":"Default Title","offer_id":67550872010987,"sku":"422-21010K","price":792.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/3152-5a58f86b47125.jpg?v=1790711718"},{"product_id":"cylinder-works-big-bore-cylinder-kit-72-00-mm-for-yamaha-yz250-part-21009-k01","title":"Cylinder Works Big Bore Cylinder Kit 72.00 mm for Yamaha YZ250, Part 21009-K01","description":"\u003cp\u003eThe Cylinder Works Big Bore Cylinder Kit is designed for Yamaha YZ250 two-stroke engines from 1999 through 2008. This complete kit includes a cylinder, matched piston kit, and required gaskets for a reliable top-end replacement and performance upgrade. With a 72.00 mm bore, the kit provides increased displacement over the standard configuration while maintaining a stock-style appearance.\u003c\/p\u003e\u003cp\u003eThe cylinder is nickel silicon carbide plated to support extended service life, improved durability, and consistent performance. Cylinder Works matches the cylinder with a Vertex piston to help promote longevity, reduce engine noise, and ensure dependable operation. The kit is designed for applications where no additional machine work is needed, helping simplify installation and reduce preparation time.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Fits 1999–2008 Yamaha YZ250 models. This kit includes the cylinder, piston assembly, and gaskets. The top-end gasket kit does not include valve stem seals. Replacement pistons, gaskets, ring sets, and standard-bore replacement cylinders are available separately when service parts are needed. Verify engine year and application before installation to ensure proper fitment.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eComplete big bore kit for increased engine displacement\u003c\/li\u003e\n\u003cli\u003e72.00 mm bore size for compatible Yamaha YZ250 applications\u003c\/li\u003e\n\u003cli\u003eIncludes cylinder, piston kit, and gaskets\u003c\/li\u003e\n\u003cli\u003eMatched with a Vertex piston for durability, performance, and reduced engine noise\u003c\/li\u003e\n\u003cli\u003eNickel silicon carbide plated cylinder for extended service life\u003c\/li\u003e\n\u003cli\u003eStock-style cylinder appearance\u003c\/li\u003e\n\u003cli\u003eDesigned to require no additional machine work\u003c\/li\u003e\n\u003cli\u003eReplacement pistons, gaskets, ring sets, and standard-bore cylinders available\u003c\/li\u003e\n\u003cli\u003eFits 1999–2008 Yamaha YZ250 models\u003c\/li\u003e\n\u003cli\u003eBrand: Cylinder Works\u003c\/li\u003e\n\u003cli\u003eManufacturer part number: 21009-K01\u003c\/li\u003e\n\u003cli\u003eVendor part number: 422-21009K\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\n1999 Yamaha YZ250\u003cbr\u003e\n2000 Yamaha YZ250\u003cbr\u003e\n2001 Yamaha YZ250\u003cbr\u003e\n2002 Yamaha YZ250\u003cbr\u003e\n2003 Yamaha YZ250\u003cbr\u003e\n2004 Yamaha YZ250\u003cbr\u003e\n2005 Yamaha YZ250\u003cbr\u003e\n2006 Yamaha YZ250\u003cbr\u003e\n2007 Yamaha YZ250\u003cbr\u003e\n2008 Yamaha YZ250\u003cbr\u003e\n2009 Yamaha YZ250\u003cbr\u003e\n2010 Yamaha YZ250\u003cbr\u003e\n2011 Yamaha YZ250\u003cbr\u003e\n2012 Yamaha YZ250\u003cbr\u003e\n2013 Yamaha YZ250\u003cbr\u003e\n2014 Yamaha YZ250\u003cbr\u003e\n2015 Yamaha YZ250\u003cbr\u003e\n2016 Yamaha YZ250\u003cbr\u003e\n2017 Yamaha YZ250\u003cbr\u003e\n2018 Yamaha YZ250\u003cbr\u003e\n2019 Yamaha YZ250\u003cbr\u003e\n2020 Yamaha YZ250\u003cbr\u003e\n2021 Yamaha YZ250\u003cbr\u003e\n2022 Yamaha YZ250\u003cbr\u003e\n2023 Yamaha YZ250\u003cbr\u003e\n2024 Yamaha YZ250\u003cbr\u003e\n2025 Yamaha YZ250","brand":"CYLINDER WORKS","offers":[{"title":"Default Title","offer_id":67550874239211,"sku":"422-21009K","price":1255.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/14a8-6a5e8392492e5.jpg?v=1790711763"},{"product_id":"cylinder-works-big-bore-cylinder-kit-21005-k02-99-00-mm-12-5-1-compression-for-yamaha-yz450f-yz450fx-and-wr450f","title":"Cylinder Works Big Bore Cylinder Kit 21005-K02, 99.00 mm, 12.5:1 Compression for Yamaha YZ450F, YZ450FX and WR450F","description":"\u003cp\u003eUpgrade your Yamaha engine with the Cylinder Works Big Bore Cylinder Kit, part number 21005-K02. This complete kit is designed for select Yamaha YZ450F, YZ450FX and WR450F models and includes a cylinder, matched Vertex piston kit and gaskets for a practical top-end replacement or performance rebuild. The 99.00 mm big bore configuration and 12.5:1 compression ratio are engineered to increase displacement and support strong, responsive engine performance.\u003c\/p\u003e\u003cp\u003eThe Cylinder Works cylinder features a stock-style appearance, allowing it to integrate cleanly with the engine while providing the durability needed for demanding off-road and motocross use. Its nickel silicon carbide plating promotes extended cylinder life, consistent performance and improved resistance to wear. The cylinder and Vertex piston are matched to help support longevity, performance and reduced engine noise.\u003c\/p\u003e\u003cp\u003eThis kit is intended as a direct replacement-style solution with no machine work required when used with the specified application. The included top-end gasket kit does not include valve stem seals. Replacement pistons, gaskets and ring sets are available separately for future maintenance. Confirm model year and engine specifications before installation to ensure correct fitment.\u003c\/p\u003e\u003cp\u003eFitment includes 2014–2017 Yamaha YZ450F, 2016–2018 Yamaha YZ450FX and 2016–2018 Yamaha WR450F models. Manufactured by Cylinder Works and supplied under vendor part number 21005-K02, this kit provides the major components needed for a complete big bore top-end installation.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eComplete big bore cylinder kit for select Yamaha applications\u003c\/li\u003e\n\u003cli\u003e99.00 mm bore with 12.5:1 compression ratio\u003c\/li\u003e\n\u003cli\u003eIncludes cylinder, matched Vertex piston kit and gaskets\u003c\/li\u003e\n\u003cli\u003eNickel silicon carbide plated cylinder for extended service life\u003c\/li\u003e\n\u003cli\u003eStock-style cylinder appearance\u003c\/li\u003e\n\u003cli\u003eMatched Vertex piston helps support durability, performance and reduced engine noise\u003c\/li\u003e\n\u003cli\u003eDesigned for installation without machine work when used with the specified application\u003c\/li\u003e\n\u003cli\u003eTop-end gasket kit does not include valve stem seals\u003c\/li\u003e\n\u003cli\u003eReplacement pistons, gaskets and ring sets are available\u003c\/li\u003e\n\u003cli\u003eFits 2014–2017 Yamaha YZ450F, 2016–2018 Yamaha YZ450FX and 2016–2018 Yamaha WR450F\u003c\/li\u003e\n\u003cli\u003eBrand: Cylinder Works\u003c\/li\u003e\n\u003cli\u003eManufacturer part number: 21005-K02\u003c\/li\u003e\n\u003cli\u003eVendor part number: 21005-K02\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\n2014 Yamaha YZ450F\u003cbr\u003e\n2015 Yamaha YZ450F\u003cbr\u003e\n2016 Yamaha WR450F\u003cbr\u003e\n2016 Yamaha YZ450F\u003cbr\u003e\n2016 Yamaha YZ450FX\u003cbr\u003e\n2017 Yamaha WR450F\u003cbr\u003e\n2017 Yamaha YZ450F\u003cbr\u003e\n2017 Yamaha YZ450FX\u003cbr\u003e\n2018 Yamaha WR450F\u003cbr\u003e\n2018 Yamaha YZ450FX","brand":"CYLINDER WORKS","offers":[{"title":"Default Title","offer_id":67550877155563,"sku":"422-21005K2","price":856.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/d301-572a689c09105.jpg?v=1790711848"},{"product_id":"cylinder-works-big-bore-cylinder-kit-21004-k02-for-yamaha-yfm700-raptor-105mm","title":"Cylinder Works Big Bore Cylinder Kit 21004-K02 for Yamaha YFM700 Raptor 105mm","description":"\u003cp\u003eUpgrade the top-end performance of your Yamaha Raptor with the Cylinder Works Big Bore Cylinder Kit, manufacturer part number 21004-K02 and vendor part number 422-21004K2. This complete kit is designed for select 2015–2018 Yamaha YFM700 Raptor models and 2015–2017 Yamaha YFM700RSE and YFM700R Raptor models. The 105mm big bore configuration provides increased displacement while maintaining a stock-style appearance.\u003c\/p\u003e\u003cp\u003eThe kit includes the cylinder, piston kit, and required gaskets for a comprehensive top-end replacement. Cylinder Works matches the cylinder with a Vertex piston to support long service life, dependable performance, and reduced engine noise. The cylinder is nickel silicon carbide plated for improved durability and wear resistance, and no machine work is required for installation when used with the appropriate application and components.\u003c\/p\u003e\u003cp\u003eFitment includes the 2015, 2016, 2017, and 2018 Yamaha YFM700 Raptor; the 2015, 2016, and 2017 Yamaha YFM700RSE Raptor SE; and the 2015, 2016, and 2017 Yamaha YFM700R Raptor. Verify the exact model and engine configuration before installation. This kit is supplied as a complete big bore package; top-end gasket kits do not include valve stem seals. Replacement pistons, gaskets, and ring sets are available separately for future service requirements.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eComplete big bore kit for select Yamaha Raptor models\u003c\/li\u003e\n\u003cli\u003e105mm bore configuration with 9.2:1 compression ratio\u003c\/li\u003e\n\u003cli\u003eIncludes cylinder, piston kit, and gaskets\u003c\/li\u003e\n\u003cli\u003eMatched Vertex piston supports longevity, performance, and reduced engine noise\u003c\/li\u003e\n\u003cli\u003eNickel silicon carbide plated cylinder promotes extended service life\u003c\/li\u003e\n\u003cli\u003eStock-style cylinder appearance\u003c\/li\u003e\n\u003cli\u003eNo machine work required for applicable installations\u003c\/li\u003e\n\u003cli\u003eReplacement pistons, gaskets, and ring sets available\u003c\/li\u003e\n\u003cli\u003eTop-end gasket kit does not include valve stem seals\u003c\/li\u003e\n\u003cli\u003eFits 2015–2018 Yamaha YFM700 Raptor, 2015–2017 Yamaha YFM700RSE Raptor SE, and 2015–2017 Yamaha YFM700R Raptor\u003c\/li\u003e\n\u003cli\u003eBrand: Cylinder Works\u003c\/li\u003e\n\u003cli\u003eManufacturer part number: 21004-K02\u003c\/li\u003e\n\u003cli\u003eVendor part number: 422-21004K2\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\n2015 Yamaha YFM700 Raptor\u003cbr\u003e\n2015 Yamaha YFM700R Raptor\u003cbr\u003e\n2015 Yamaha YFM700RSE Raptor SE\u003cbr\u003e\n2016 Yamaha YFM700 Raptor\u003cbr\u003e\n2016 Yamaha YFM700R Raptor\u003cbr\u003e\n2016 Yamaha YFM700RSE Raptor SE\u003cbr\u003e\n2017 Yamaha YFM700 Raptor\u003cbr\u003e\n2017 Yamaha YFM700R Raptor\u003cbr\u003e\n2017 Yamaha YFM700RSE Raptor SE\u003cbr\u003e\n2018 Yamaha YFM700 Raptor\u003cbr\u003e\n2018 Yamaha YFM700R Raptor\u003cbr\u003e\n2018 Yamaha YFM700RSE Raptor SE\u003cbr\u003e\n2019 Yamaha YFM700R Raptor\u003cbr\u003e\n2019 Yamaha YFM700RSE Raptor SE\u003cbr\u003e\n2020 Yamaha YFM700R Raptor\u003cbr\u003e\n2020 Yamaha YFM700RSE Raptor SE\u003cbr\u003e\n2021 Yamaha YFM700R Raptor\u003cbr\u003e\n2021 Yamaha YFM700RSE Raptor SE\u003cbr\u003e\n2022 Yamaha YFM700R Raptor\u003cbr\u003e\n2022 Yamaha YFM700RSE Raptor SE\u003cbr\u003e\n2023 Yamaha YFM700R Raptor\u003cbr\u003e\n2023 Yamaha YFM700RSE Raptor SE\u003cbr\u003e\n2024 Yamaha YFM700R Raptor\u003cbr\u003e\n2025 Yamaha YFM700R Raptor","brand":"CYLINDER WORKS","offers":[{"title":"Default Title","offer_id":67550880366827,"sku":"422-21004K2","price":1011.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/a2c2-5a58f7d7a9fad.jpg?v=1790711913"},{"product_id":"cylinder-works-big-bore-cylinder-kit-98-00-mm-12-5-1-compression-for-yamaha-yz450f-and-wr450f","title":"Cylinder Works Big Bore Cylinder Kit 98.00 mm, 12.5:1 Compression for Yamaha YZ450F and WR450F","description":"\u003cp\u003eThe Cylinder Works Big Bore Cylinder Kit is designed to increase displacement and performance on select Yamaha four-stroke models. This complete kit features a 98.00 mm bore and a 12.5:1 compression ratio, providing a matched combination of cylinder, piston kit, and gaskets for a dependable top-end rebuild. Manufacturer part number 21003-K01 and vendor part number 422-21003K identify this application-specific kit.\u003c\/p\u003e\u003cp\u003eThe cylinder is styled to resemble the original equipment component while using nickel-silicon-carbide plating for improved durability and extended service life. A matched Vertex piston helps support consistent performance, long-term reliability, and reduced engine noise. No machine work is required for installation when used with the specified application and properly prepared components.\u003c\/p\u003e\u003cp\u003eThis kit fits 2006 through 2009 Yamaha YZ450F models and select 2007 through 2009 and 2011 through 2013 Yamaha WR450F models. It is intended for riders and technicians replacing the original top end with a complete performance-oriented solution. The top-end gasket kit is included but does not contain valve stem seals. Replacement pistons, gaskets, and ring sets are available separately for future service requirements. Verify model year, engine configuration, and installation specifications before ordering.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eComplete big bore cylinder kit with cylinder, piston kit, and gaskets\u003c\/li\u003e\n\u003cli\u003e98.00 mm bore with a 12.5:1 compression ratio\u003c\/li\u003e\n\u003cli\u003eMatched Vertex piston supports durability, performance, and reduced engine noise\u003c\/li\u003e\n\u003cli\u003eNickel-silicon-carbide plated cylinder provides extended service life\u003c\/li\u003e\n\u003cli\u003eStock-style cylinder appearance\u003c\/li\u003e\n\u003cli\u003eNo machine work required for specified applications\u003c\/li\u003e\n\u003cli\u003eTop-end gasket kit does not include valve stem seals\u003c\/li\u003e\n\u003cli\u003eReplacement pistons, gaskets, and ring sets are available\u003c\/li\u003e\n\u003cli\u003eFits 2006-2009 Yamaha YZ450F models\u003c\/li\u003e\n\u003cli\u003eFits 2007-2009 and 2011-2013 Yamaha WR450F models\u003c\/li\u003e\n\u003cli\u003eManufacturer part number: 21003-K01\u003c\/li\u003e\n\u003cli\u003eVendor part number: 422-21003K\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\n2006 Yamaha YZ450F\u003cbr\u003e\n2007 Yamaha WR450F\u003cbr\u003e\n2007 Yamaha YZ450F\u003cbr\u003e\n2008 Yamaha WR450F\u003cbr\u003e\n2008 Yamaha YZ450F\u003cbr\u003e\n2009 Yamaha WR450F\u003cbr\u003e\n2009 Yamaha YZ450F\u003cbr\u003e\n2010 Yamaha WR450F\u003cbr\u003e\n2011 Yamaha WR450F\u003cbr\u003e\n2012 Yamaha WR450F\u003cbr\u003e\n2013 Yamaha WR450F\u003cbr\u003e\n2014 Yamaha WR450F\u003cbr\u003e\n2015 Yamaha WR450F","brand":"CYLINDER WORKS","offers":[{"title":"Default Title","offer_id":67550886265067,"sku":"422-21003K","price":873.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/4239-5a58f72132391.jpg?v=1790712039"},{"product_id":"cylinder-works-big-bore-cylinder-kit-80-00-mm-12-5-1-compression-for-2001-2010-yamaha-yz250f-part-number-21002-k01","title":"Cylinder Works Big Bore Cylinder Kit 80.00 mm, 12.5:1 Compression for 2001–2010 Yamaha YZ250F, Part Number 21002-K01","description":"\u003cp\u003eUpgrade the top-end performance of your Yamaha YZ250F with the Cylinder Works Big Bore Cylinder Kit, model 21002-K01. Designed for a big bore conversion, this complete kit includes the cylinder, matched piston kit, and required gaskets for a reliable installation. The 80.00 mm piston provides increased displacement, while the 12.5:1 compression ratio is engineered to support strong engine performance and throttle response.\u003c\/p\u003e\u003cp\u003eThe cylinder is styled to look like the original equipment component while using a durable nickel silicon carbide plating process to promote long service life, heat management, and wear resistance. Cylinder Works matches the kit with a Vertex piston to help ensure dependable operation, consistent performance, and reduced engine noise. No machine work is required for installation when used with the correct application and setup. The included top-end gasket kit does not include valve stem seals.\u003c\/p\u003e\u003cp\u003eFeature: Complete big bore cylinder kit\u003cbr\u003eFeature: Includes cylinder, Vertex piston kit, and gaskets\u003cbr\u003eFeature: 80.00 mm big bore piston\u003cbr\u003eFeature: 12.5:1 compression ratio\u003cbr\u003eFeature: Nickel silicon carbide plated cylinder for extended durability\u003cbr\u003eFeature: Stock-style cylinder appearance\u003cbr\u003eFeature: No machine work required for the intended application\u003cbr\u003eFeature: Replacement pistons, gaskets, and ring sets are available separately\u003c\/p\u003e\u003cp\u003eThis Cylinder Works kit fits 2001 through 2010 Yamaha YZ250F motorcycles. Verify engine configuration, year, and installation requirements before ordering. Manufacturer: Cylinder Works. Vendor part number: 21002-K01.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eComplete big bore cylinder kit\u003c\/li\u003e\n\u003cli\u003eIncludes cylinder, Vertex piston kit, and gaskets\u003c\/li\u003e\n\u003cli\u003e80.00 mm piston with a 12.5:1 compression ratio\u003c\/li\u003e\n\u003cli\u003eNickel silicon carbide plated cylinder for extended service life\u003c\/li\u003e\n\u003cli\u003eStock-style cylinder appearance\u003c\/li\u003e\n\u003cli\u003eNo machine work required for the intended application\u003c\/li\u003e\n\u003cli\u003eTop-end gasket kit does not include valve stem seals\u003c\/li\u003e\n\u003cli\u003eReplacement piston, gasket, and ring sets are available separately\u003c\/li\u003e\n\u003cli\u003eFits 2001–2010 Yamaha YZ250F\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\n2001 Yamaha WR250F\u003cbr\u003e\n2001 Yamaha YZ250F\u003cbr\u003e\n2002 Yamaha WR250F\u003cbr\u003e\n2002 Yamaha YZ250F\u003cbr\u003e\n2003 Yamaha WR250F\u003cbr\u003e\n2003 Yamaha YZ250F\u003cbr\u003e\n2004 Yamaha WR250F\u003cbr\u003e\n2004 Yamaha YZ250F\u003cbr\u003e\n2005 Yamaha WR250F\u003cbr\u003e\n2005 Yamaha YZ250F\u003cbr\u003e\n2006 Yamaha WR250F\u003cbr\u003e\n2006 Yamaha YZ250F\u003cbr\u003e\n2007 Yamaha WR250F\u003cbr\u003e\n2007 Yamaha YZ250F\u003cbr\u003e\n2008 Yamaha WR250F\u003cbr\u003e\n2008 Yamaha YZ250F\u003cbr\u003e\n2009 Yamaha WR250F\u003cbr\u003e\n2009 Yamaha YZ250F\u003cbr\u003e\n2010 Yamaha WR250F\u003cbr\u003e\n2010 Yamaha YZ250F\u003cbr\u003e\n2011 Yamaha WR250F\u003cbr\u003e\n2011 Yamaha YZ250F\u003cbr\u003e\n2012 Yamaha WR250F\u003cbr\u003e\n2012 Yamaha YZ250F\u003cbr\u003e\n2013 Yamaha WR250F\u003cbr\u003e\n2013 Yamaha YZ250F","brand":"CYLINDER WORKS","offers":[{"title":"Default Title","offer_id":67550889279723,"sku":"422-21002K","price":836.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/6004-5a58f6ae27e45.jpg?v=1790712100"},{"product_id":"cylinder-works-big-bore-cylinder-kit-82-00-mm-13-9-1-compression-for-honda-crf250r-crf250rx-part-cw11011k02","title":"Cylinder Works Big Bore Cylinder Kit 82.00 mm, 13.9:1 Compression for Honda CRF250R\/CRF250RX, Part CW11011K02","description":"\u003cp\u003eUpgrade the top end of your compatible Honda motocross or cross-country motorcycle with the Cylinder Works Big Bore Cylinder Kit. This 82.00 mm big bore kit is designed for increased displacement and uses a 13.9:1 compression ratio to support strong engine performance. The kit includes the cylinder, matched piston kit, and gaskets required for installation.\u003c\/p\u003e\u003cp\u003eManufactured by Cylinder Works, the cylinder features a nickel silicon carbide plated bore for extended service life, consistent performance, and improved durability. Its stock-style appearance helps maintain an original-equipment look while the matched Vertex piston is selected to promote longevity, performance, and reduced engine noise. No machine work is needed for applicable installations, helping simplify the replacement process.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Fits 2022–2025 Honda CRF250R and CRF250RX models, including the 2025 Honda CRF250RWE. This kit is intended for compatible big bore applications; verify model-year specifications and installation requirements before ordering. Manufacturer part number CW11011K02 and vendor part number 422-11011K2 identify this Cylinder Works kit. The top-end gasket kit does not include valve stem seals.\u003c\/p\u003e\u003cp\u003eReplacement pistons, gaskets, and ring sets are available separately for future service needs. Professional installation and careful adherence to the motorcycle manufacturer's assembly and tuning procedures are recommended.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eBig bore kit with an 82.00 mm bore and 13.9:1 compression ratio\u003c\/li\u003e\n\u003cli\u003eIncludes cylinder, matched Vertex piston kit, and gaskets\u003c\/li\u003e\n\u003cli\u003eNickel silicon carbide plated cylinder for extended service life\u003c\/li\u003e\n\u003cli\u003eStock-style cylinder appearance\u003c\/li\u003e\n\u003cli\u003eMatched piston helps support longevity, performance, and reduced engine noise\u003c\/li\u003e\n\u003cli\u003eNo machine work needed for applicable installations\u003c\/li\u003e\n\u003cli\u003eReplacement pistons, gaskets, and ring sets available separately\u003c\/li\u003e\n\u003cli\u003eTop-end gasket kit does not include valve stem seals\u003c\/li\u003e\n\u003cli\u003eFits 2022–2025 Honda CRF250R and CRF250RX models, including the 2025 Honda CRF250RWE\u003c\/li\u003e\n\u003cli\u003eBrand: Cylinder Works; manufacturer part number: CW11011K02; vendor part number: 422-11011K2\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\n2022 Honda CRF250R\u003cbr\u003e\n2022 Honda CRF250RX\u003cbr\u003e\n2023 Honda CRF250R\u003cbr\u003e\n2023 Honda CRF250RX\u003cbr\u003e\n2024 Honda CRF250R\u003cbr\u003e\n2024 Honda CRF250RX\u003cbr\u003e\n2025 Honda CRF250R\u003cbr\u003e\n2025 Honda CRF250RWE\u003cbr\u003e\n2025 Honda CRF250RX","brand":"CYLINDER WORKS","offers":[{"title":"Default Title","offer_id":67550895309035,"sku":"422-11011K2","price":734.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/2059-6a5e80ef8a385.jpg?v=1790712214"},{"product_id":"cylinder-works-big-bore-cylinder-kit-80-00-mm-13-5-1-compression-for-honda-crf250r-and-crf250rx","title":"Cylinder Works Big Bore Cylinder Kit 80.00 mm, 13.5:1 Compression for Honda CRF250R and CRF250RX","description":"\u003cp\u003eUpgrade the top end of your compatible Honda motocross or cross-country motorcycle with the Cylinder Works Big Bore Cylinder Kit, part number CW11011K01. This 80.00 mm big bore kit is designed for select 2018-2021 Honda CRF250R and 2019-2021 Honda CRF250RX models, providing a 3.0 mm overbore and 13.5:1 compression ratio. The kit is engineered as a direct replacement-style solution that maintains a stock-like appearance while increasing displacement and supporting strong engine performance.\u003c\/p\u003e\u003cp\u003eThe kit includes the cylinder, matched piston kit, and required gaskets for a complete top-end installation. Cylinder Works pairs the cylinder with a Vertex piston to promote durability, consistent performance, and reduced engine noise. The cylinder features a nickel silicon carbide plating process for extended service life and dependable heat management. No machine work is required for installation when used with the specified application and supporting components.\u003c\/p\u003e\u003cp\u003eDesigned for fitment on 2018 Honda CRF250R; 2019 Honda CRF250R and CRF250RX; 2020 Honda CRF250R and CRF250RX; and 2021 Honda CRF250R and CRF250RX models. The manufacturer is Cylinder Works, and the vendor part number is CW11011K01. This kit is intended for big bore applications and should be installed by a qualified technician using the appropriate service procedures. Replacement pistons, gaskets, and ring sets are available separately. The included top-end gasket kit does not include valve stem seals.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eComplete big bore kit for select Honda CRF250R and CRF250RX motorcycles\u003c\/li\u003e\n\u003cli\u003e80.00 mm bore with a 3.0 mm overbore\u003c\/li\u003e\n\u003cli\u003e13.5:1 compression ratio\u003c\/li\u003e\n\u003cli\u003eIncludes cylinder, matched Vertex piston kit, and gaskets\u003c\/li\u003e\n\u003cli\u003eNickel silicon carbide plated cylinder for extended service life\u003c\/li\u003e\n\u003cli\u003eStock-style cylinder appearance\u003c\/li\u003e\n\u003cli\u003eNo machine work required for specified applications\u003c\/li\u003e\n\u003cli\u003eMatched Vertex piston supports durability, performance, and reduced engine noise\u003c\/li\u003e\n\u003cli\u003eReplacement piston, gasket, and ring sets are available\u003c\/li\u003e\n\u003cli\u003eTop-end gasket kit does not include valve stem seals\u003c\/li\u003e\n\u003cli\u003eBrand: Cylinder Works\u003c\/li\u003e\n\u003cli\u003eManufacturer part number: CW11011K01\u003c\/li\u003e\n\u003cli\u003eVendor part number: CW11011K01\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\n2018 Honda CRF250R\u003cbr\u003e\n2019 Honda CRF250R\u003cbr\u003e\n2019 Honda CRF250RX\u003cbr\u003e\n2020 Honda CRF250R\u003cbr\u003e\n2020 Honda CRF250RX\u003cbr\u003e\n2021 Honda CRF250R\u003cbr\u003e\n2021 Honda CRF250RX","brand":"CYLINDER WORKS","offers":[{"title":"Default Title","offer_id":67550900093163,"sku":"422-11011K","price":787.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/e97e-5db86115614e8.jpg?v=1790712295"},{"product_id":"cylinder-works-big-bore-cylinder-kit-105-mm-for-2008-2009-honda-trx700xx-part-11009-k01","title":"Cylinder Works Big Bore Cylinder Kit 105 mm for 2008-2009 Honda TRX700XX, Part 11009-K01","description":"\u003cp\u003eUpgrade the top-end performance of your 2008 or 2009 Honda TRX700XX with the Cylinder Works Big Bore Cylinder Kit, model 11009-K01. This complete 105 mm big bore kit is designed for riders seeking increased engine displacement and dependable performance while maintaining a stock-style appearance. The kit includes the cylinder, matched piston kit, and required gaskets for a comprehensive installation.\u003c\/p\u003e\u003cp\u003eThe nickel silicon carbide plated cylinder is engineered for extended service life, efficient heat transfer, and reduced wear. Cylinder Works matches the cylinder with a Vertex piston to support longevity, consistent performance, and reduced engine noise. The high-quality components are designed to work together as a complete top-end solution, helping simplify installation and eliminate the need for additional component matching.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Fits 2008 Honda TRX700XX and 2009 Honda TRX700XX models. The kit is intended as a replacement or performance cylinder assembly for compatible applications. No machine work is needed for standard installation when used with the appropriate supporting components and manufacturer specifications. Always verify engine configuration and installation requirements before assembly.\u003c\/p\u003e\u003cp\u003eThe Cylinder Works 11009-K01 kit is backed by replacement piston, gasket, and ring sets availability for future service needs. The included top-end gasket kit does not include valve stem seals, so those components should be inspected and replaced separately as required during installation.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eComplete 105 mm big bore cylinder kit for increased engine displacement\u003c\/li\u003e\n\u003cli\u003eIncludes cylinder, matched Vertex piston kit, and gaskets\u003c\/li\u003e\n\u003cli\u003eNickel silicon carbide plated cylinder for extended service life and durability\u003c\/li\u003e\n\u003cli\u003eStock-style cylinder appearance\u003c\/li\u003e\n\u003cli\u003eMatched piston design helps support longevity, performance, and reduced engine noise\u003c\/li\u003e\n\u003cli\u003eNo machine work needed for standard installation when properly fitted\u003c\/li\u003e\n\u003cli\u003eFits 2008-2009 Honda TRX700XX models\u003c\/li\u003e\n\u003cli\u003eTop-end gasket kit does not include valve stem seals\u003c\/li\u003e\n\u003cli\u003eReplacement piston, gasket, and ring sets are available\u003c\/li\u003e\n\u003cli\u003eBrand: Cylinder Works\u003c\/li\u003e\n\u003cli\u003eManufacturer part number: 11009-K01\u003c\/li\u003e\n\u003cli\u003eVendor part number: 422-11009K\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\n2008 Honda TRX700XX\u003cbr\u003e\n2009 Honda TRX700XX","brand":"CYLINDER WORKS","offers":[{"title":"Default Title","offer_id":67550903959787,"sku":"422-11009K","price":853.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/7480-5a58ea90c31a0.jpg?v=1790712371"},{"product_id":"cylinder-works-big-bore-cylinder-kit-80-mm-13-3-1-compression-for-honda-crf250r-part-11007-k01","title":"Cylinder Works Big Bore Cylinder Kit 80 mm, 13.3:1 Compression for Honda CRF250R | Part 11007-K01","description":"\u003cp\u003eUpgrade the top end of your motorcycle with the Cylinder Works Big Bore Cylinder Kit, designed for select 2010–2017 Honda CRF250R models. This complete kit includes a nickel silicon carbide plated cylinder, matched high-compression Vertex piston kit, and the required top-end gaskets for a reliable replacement and performance-focused rebuild. The 80 mm bore and 13.3:1 compression ratio are engineered to increase engine displacement and support strong power delivery while maintaining a stock-style appearance.\u003c\/p\u003e\u003cp\u003eThe Cylinder Works cylinder is manufactured to provide dependable service life, reduced engine noise, and consistent performance. Its nickel silicon carbide plating helps promote long-lasting cylinder durability, while the matched Vertex piston helps ensure proper fit and reliable operation. No machine work is needed for installation when used with the appropriate application and components. The top-end gasket kit is included but does not contain valve stem seals.\u003c\/p\u003e\u003cp\u003eThis Cylinder Works kit fits 2010, 2011, 2012, 2013, 2014, 2015, 2016, and 2017 Honda CRF250R motorcycles. It is intended as a complete big bore replacement kit and includes the cylinder, piston kit, and gaskets. Replacement pistons, gaskets, and ring sets are available separately for future service needs. Verify the motorcycle model and year before installation to ensure correct fitment. Manufacturer part number: 11007-K01. Vendor part number: 422-11007K.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eComplete big bore cylinder kit for select Honda CRF250R models\u003c\/li\u003e\n\u003cli\u003e80 mm bore with a 13.3:1 compression ratio\u003c\/li\u003e\n\u003cli\u003eIncludes cylinder, matched Vertex piston kit, and top-end gaskets\u003c\/li\u003e\n\u003cli\u003eNickel silicon carbide plated cylinder promotes extended service life\u003c\/li\u003e\n\u003cli\u003eMatched Vertex piston supports longevity, performance, and reduced engine noise\u003c\/li\u003e\n\u003cli\u003eStock-style cylinder appearance\u003c\/li\u003e\n\u003cli\u003eNo machine work needed for the specified application\u003c\/li\u003e\n\u003cli\u003eTop-end gasket kit does not include valve stem seals\u003c\/li\u003e\n\u003cli\u003eReplacement piston, gasket, and ring sets are available\u003c\/li\u003e\n\u003cli\u003eFits 2010–2017 Honda CRF250R motorcycles\u003c\/li\u003e\n\u003cli\u003eBrand: Cylinder Works\u003c\/li\u003e\n\u003cli\u003eManufacturer part number: 11007-K01\u003c\/li\u003e\n\u003cli\u003eVendor part number: 422-11007K\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\n2010 Honda CRF250R\u003cbr\u003e\n2011 Honda CRF250R\u003cbr\u003e\n2012 Honda CRF250R\u003cbr\u003e\n2013 Honda CRF250R\u003cbr\u003e\n2014 Honda CRF250R\u003cbr\u003e\n2015 Honda CRF250R\u003cbr\u003e\n2016 Honda CRF250R\u003cbr\u003e\n2017 Honda CRF250R","brand":"CYLINDER WORKS","offers":[{"title":"Default Title","offer_id":67550910480619,"sku":"422-11007K","price":758.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/84d0-5a58ec3fef4f8.jpg?v=1790712473"},{"product_id":"cylinder-works-11005-k01-big-bore-cylinder-kit-for-honda-trx450r-and-trx450er-99-00-mm-12-0-1-compression","title":"Cylinder Works 11005-K01 Big Bore Cylinder Kit for Honda TRX450R and TRX450ER, 99.00 mm, 12.0:1 Compression","description":"\u003cp\u003eUpgrade the top-end performance of your Honda ATV with the Cylinder Works 11005-K01 Big Bore Cylinder Kit. Designed for a 99.00 mm bore and 12.0:1 compression ratio, this complete kit provides a reliable replacement and performance-focused solution for compatible Honda TRX450R and TRX450ER engines. The kit includes the cylinder, piston kit, and required gaskets for a comprehensive installation.\u003c\/p\u003e\u003cp\u003eThe Cylinder Works cylinder is engineered to look similar to the original equipment cylinder while using a nickel silicon carbide plating process for enhanced durability and extended service life. The piston is matched to the cylinder to support longevity, consistent performance, and reduced engine noise. No machining is required for installation when used with the appropriate compatible application and components.\u003c\/p\u003e\u003cp\u003eFitment includes 2006–2009 and 2012–2014 Honda TRX450ER Electric Start models, along with 2006–2008 Honda TRX450R models. Verify the model year and engine configuration before ordering. Cylinder Works replacement pistons, gasket sets, and ring sets are also available separately for future maintenance. The included top-end gasket kit does not include valve stem seals.\u003c\/p\u003e\u003cp\u003eManufacturer: Cylinder Works. Vendor part number: 11005-K01. This kit is intended for compatible Honda TRX450R and TRX450ER applications requiring a big bore replacement cylinder assembly.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eBore Size: 99.00 mm, equivalent to approximately 3.90 inches\u003c\/li\u003e\n\u003cli\u003eCompression Ratio: 12.0:1 for enhanced engine performance\u003c\/li\u003e\n\u003cli\u003eKit Contents: Includes cylinder, piston kit, and gaskets\u003c\/li\u003e\n\u003cli\u003eCylinder Construction: Nickel silicon carbide plated for improved durability and longer service life\u003c\/li\u003e\n\u003cli\u003ePiston Matching: Matched Vertex piston supports longevity, performance, and reduced engine noise\u003c\/li\u003e\n\u003cli\u003eInstallation: No machine work required for compatible applications\u003c\/li\u003e\n\u003cli\u003eAppearance: Cylinder is designed to closely resemble the stock unit\u003c\/li\u003e\n\u003cli\u003eFitment: Compatible with 2006–2009 and 2012–2014 Honda TRX450ER Electric Start models\u003c\/li\u003e\n\u003cli\u003eFitment: Compatible with 2006–2008 Honda TRX450R models\u003c\/li\u003e\n\u003cli\u003eReplacement Support: Replacement pistons, gaskets, and ring sets are available\u003c\/li\u003e\n\u003cli\u003eGasket Note: Top-end gasket kit does not include valve stem seals\u003c\/li\u003e\n\u003cli\u003eBrand: Cylinder Works\u003c\/li\u003e\n\u003cli\u003eManufacturer Part Number: 11005-K01\u003c\/li\u003e\n\u003cli\u003eVendor Part Number: 11005-K01\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\n2006 Honda TRX450ER Electric Start\u003cbr\u003e\n2006 Honda TRX450R\u003cbr\u003e\n2007 Honda TRX450ER Electric Start\u003cbr\u003e\n2007 Honda TRX450R\u003cbr\u003e\n2008 Honda TRX450ER Electric Start\u003cbr\u003e\n2008 Honda TRX450R\u003cbr\u003e\n2009 Honda TRX450ER Electric Start\u003cbr\u003e\n2009 Honda TRX450R\u003cbr\u003e\n2010 Honda TRX450ER Electric Start\u003cbr\u003e\n2011 Honda TRX450ER Electric Start\u003cbr\u003e\n2012 Honda TRX450ER Electric Start\u003cbr\u003e\n2012 Honda TRX450R\u003cbr\u003e\n2013 Honda TRX450ER Electric Start\u003cbr\u003e\n2013 Honda TRX450R\u003cbr\u003e\n2014 Honda TRX450ER Electric Start\u003cbr\u003e\n2014 Honda TRX450R","brand":"CYLINDER WORKS","offers":[{"title":"Default Title","offer_id":67550921392363,"sku":"422-11005K","price":786.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/d696-5a58ebc685003.jpg?v=1790712723"},{"product_id":"cylinder-works-11004-k01-big-bore-cylinder-kit-68-00-mm-11-7-1-compression-for-2007-2009-honda-crf150r","title":"Cylinder Works 11004-K01 Big Bore Cylinder Kit, 68.00 mm, 11.7:1 Compression for 2007-2009 Honda CRF150R","description":"\u003cp\u003eUpgrade the top-end performance of your Honda CRF150R with the Cylinder Works 11004-K01 Big Bore Cylinder Kit. Designed for a 68.00 mm bore and 11.7:1 compression ratio, this complete kit is engineered to provide dependable performance while maintaining a factory-style appearance. The cylinder is nickel silicon carbide plated for extended service life, improved heat management, and durable bore protection.\u003c\/p\u003e\u003cp\u003eThe Cylinder Works kit includes the cylinder, matched Vertex piston kit, and required gaskets for installation. The piston and cylinder are precisely matched to support longevity, performance, and reduced engine noise. This kit is designed as a direct replacement for the original top-end components, and no machining is needed for standard installation. The top-end gasket kit does not include valve stem seals, so existing seals should be inspected and replaced as necessary during assembly.\u003c\/p\u003e\u003cp\u003eFitment includes the 2007, 2008, and 2009 Honda CRF150R, as well as the 2007, 2008, and 2009 Honda CRF150RB Expert. Replacement pistons, gaskets, and ring sets are available separately for future maintenance. Verify engine specifications and installation requirements before ordering to ensure compatibility with your motorcycle.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eComplete big bore cylinder kit for increased top-end performance\u003c\/li\u003e\n\u003cli\u003e68.00 mm bore with 11.7:1 compression ratio\u003c\/li\u003e\n\u003cli\u003eIncludes cylinder, matched Vertex piston kit, and gaskets\u003c\/li\u003e\n\u003cli\u003eNickel silicon carbide plated cylinder for extended service life\u003c\/li\u003e\n\u003cli\u003eFactory-style cylinder appearance\u003c\/li\u003e\n\u003cli\u003eNo machining required for standard installation\u003c\/li\u003e\n\u003cli\u003eMatched piston and cylinder help promote longevity, performance, and reduced engine noise\u003c\/li\u003e\n\u003cli\u003eTop-end gasket kit does not include valve stem seals\u003c\/li\u003e\n\u003cli\u003eReplacement piston, gasket, and ring sets are available\u003c\/li\u003e\n\u003cli\u003eFits 2007-2009 Honda CRF150R and CRF150RB Expert models\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\n2007 Honda CRF150R\u003cbr\u003e\n2007 Honda CRF150RB Expert\u003cbr\u003e\n2008 Honda CRF150R\u003cbr\u003e\n2008 Honda CRF150RB Expert\u003cbr\u003e\n2009 Honda CRF150R\u003cbr\u003e\n2009 Honda CRF150RB Expert","brand":"CYLINDER WORKS","offers":[{"title":"Default Title","offer_id":67550924734699,"sku":"422-11004K","price":660.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/4a0e-5a58eb4f4ad06.jpg?v=1790712800"},{"product_id":"cylinder-works-big-bore-cylinder-kit-98-00-mm-10-5-1-compression-for-2004-2005-honda-trx450r","title":"Cylinder Works Big Bore Cylinder Kit 98.00 mm, 10.5:1 Compression for 2004-2005 Honda TRX450R","description":"\u003cp\u003eUpgrade the top-end performance of your ATV with the Cylinder Works Big Bore Cylinder Kit, model 11003-K01. This 98.00 mm big bore kit is designed for 2004 and 2005 Honda TRX450R models and features a 10.5:1 compression ratio. The kit includes a cylinder, matched Vertex piston kit, and required gaskets for a reliable replacement or performance-focused rebuild.\u003c\/p\u003e\u003cp\u003eThe Cylinder Works cylinder maintains a stock-style appearance while using nickel silicon carbide plating to promote long service life, consistent performance, and improved durability. The matched Vertex piston helps support longevity, dependable operation, and reduced engine noise. This kit is engineered for a direct top-end installation with no machine work needed when used with compatible applications and installation requirements.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Fits 2004 Honda TRX450R and 2005 Honda TRX450R. Manufacturer and vendor part number 11003-K01. Replacement pistons, gaskets, and ring sets are available separately for future maintenance. The top-end gasket kit does not include valve stem seals, so verify all required components before installation. Confirm model-year compatibility and engine specifications before ordering.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eApplication: Fits 2004 and 2005 Honda TRX450R models\u003c\/li\u003e\n\u003cli\u003eBore: 98.00 mm big bore configuration\u003c\/li\u003e\n\u003cli\u003eCompression Ratio: 10.5:1 for enhanced top-end performance\u003c\/li\u003e\n\u003cli\u003eKit Contents: Includes cylinder, matched Vertex piston kit, and gaskets\u003c\/li\u003e\n\u003cli\u003eCylinder Construction: Nickel silicon carbide plated for extended service life\u003c\/li\u003e\n\u003cli\u003eAppearance: Stock-style cylinder design\u003c\/li\u003e\n\u003cli\u003eInstallation: No machine work needed for compatible applications\u003c\/li\u003e\n\u003cli\u003ePiston Matching: Matched with Vertex pistons to support longevity, performance, and reduced engine noise\u003c\/li\u003e\n\u003cli\u003ePart Number: Cylinder Works manufacturer and vendor part number 11003-K01\u003c\/li\u003e\n\u003cli\u003eService Support: Replacement pistons, gaskets, and ring sets are available\u003c\/li\u003e\n\u003cli\u003eGasket Note: Top-end gasket kit does not include valve stem seals\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\n2004 Honda TRX450R\u003cbr\u003e\n2005 Honda TRX450R","brand":"CYLINDER WORKS","offers":[{"title":"Default Title","offer_id":67550928830699,"sku":"422-11003K","price":809.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/5352-5a58eb27c28d9.jpg?v=1790712872"},{"product_id":"cylinder-works-big-bore-cylinder-kit-81-00-mm-for-honda-crf250r-and-crf250x-part-11001-k01","title":"Cylinder Works Big Bore Cylinder Kit 81.00 mm for Honda CRF250R and CRF250X, Part 11001-K01","description":"\u003cp\u003eUpgrade the top end of your compatible Honda motorcycle with the Cylinder Works Big Bore Cylinder Kit, Part Number 11001-K01. This complete big bore kit features an 81.00 mm cylinder and a 13.0:1 compression ratio, providing a direct replacement solution for riders seeking dependable performance and long-term durability. The cylinder is designed to maintain a stock appearance while adding the benefits of a larger bore configuration.\u003c\/p\u003e\u003cp\u003eThe kit includes the cylinder, matched piston kit, and required gaskets for a comprehensive installation. Cylinder Works pairs the cylinder with a Vertex piston to help promote longevity, consistent performance, and reduced engine noise. The cylinder is nickel silicon carbide plated for extended service life and is engineered so no machine work is needed for installation when used with the appropriate application requirements. The included top-end gasket kit does not include valve stem seals.\u003c\/p\u003e\u003cp\u003eThis Cylinder Works kit fits 2004 through 2009 Honda CRF250R models and 2004 through 2007 Honda CRF250X models. It is intended for applications requiring the specified big bore configuration; verify engine setup and application details before installation. Replacement pistons, gaskets, and ring sets are available separately for future service needs. Manufacturer and vendor part number: 11001-K01.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eComplete big bore cylinder kit for compatible Honda applications\u003c\/li\u003e\n\u003cli\u003e81.00 mm bore with a 13.0:1 compression ratio\u003c\/li\u003e\n\u003cli\u003eIncludes cylinder, Vertex piston kit, and gaskets\u003c\/li\u003e\n\u003cli\u003eNickel silicon carbide-plated cylinder promotes longer service life\u003c\/li\u003e\n\u003cli\u003eStock-style cylinder appearance\u003c\/li\u003e\n\u003cli\u003eMatched Vertex piston helps support durability, performance, and reduced engine noise\u003c\/li\u003e\n\u003cli\u003eDesigned for installation without machine work when application requirements are met\u003c\/li\u003e\n\u003cli\u003eTop-end gasket kit does not include valve stem seals\u003c\/li\u003e\n\u003cli\u003eReplacement piston, gasket, and ring sets are available\u003c\/li\u003e\n\u003cli\u003eFits 2004-2009 Honda CRF250R and 2004-2007 Honda CRF250X models\u003c\/li\u003e\n\u003cli\u003eBrand: Cylinder Works\u003c\/li\u003e\n\u003cli\u003eManufacturer and vendor part number: 11001-K01\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\n2004 Honda CRF250R\u003cbr\u003e\n2004 Honda CRF250X\u003cbr\u003e\n2005 Honda CRF250R\u003cbr\u003e\n2005 Honda CRF250X\u003cbr\u003e\n2006 Honda CRF250R\u003cbr\u003e\n2006 Honda CRF250X\u003cbr\u003e\n2007 Honda CRF250R\u003cbr\u003e\n2007 Honda CRF250X\u003cbr\u003e\n2008 Honda CRF250R\u003cbr\u003e\n2008 Honda CRF250X\u003cbr\u003e\n2009 Honda CRF250R\u003cbr\u003e\n2009 Honda CRF250X\u003cbr\u003e\n2010 Honda CRF250X\u003cbr\u003e\n2011 Honda CRF250X\u003cbr\u003e\n2012 Honda CRF250X\u003cbr\u003e\n2013 Honda CRF250X\u003cbr\u003e\n2014 Honda CRF250X\u003cbr\u003e\n2015 Honda CRF250X\u003cbr\u003e\n2016 Honda CRF250X\u003cbr\u003e\n2017 Honda CRF250X","brand":"CYLINDER WORKS","offers":[{"title":"Default Title","offer_id":67550933385451,"sku":"422-11001K","price":752.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/982d-572a6899c9b0d.jpg?v=1790712950"},{"product_id":"cylinder-works-23403b-forged-big-bore-piston-kit-97-96-mm-12-0-1-compression-for-yamaha-yfz450r-yfz450x","title":"Cylinder Works 23403B Forged Big Bore Piston Kit, 97.96 mm, 12.0:1 Compression for Yamaha YFZ450R\/YFZ450X","description":"\u003cp\u003eUpgrade the performance of your Yamaha ATV with the Cylinder Works 23403B Forged Big Bore Piston Kit. Designed with a 97.96 mm bore and 12.0:1 compression ratio, this kit increases engine displacement, torque, and peak horsepower compared with the original piston configuration. The forged construction provides the strength and durability required for demanding riding conditions and high-performance applications.\u003c\/p\u003e\u003cp\u003eThe piston skirt is coated with high-tech molybdenum disulfide to support faster break-in and help reduce friction during operation. Cylinder Works heat treats each piston using a T-5 hardening and tempering cycle for improved material strength and dependable service life. This complete kit includes the forged piston, piston rings, wrist pin, and circlips for a convenient installation.\u003c\/p\u003e\u003cp\u003eManufacturer part number 23403B, also identified by vendor part number 422-210011B, this piston kit is designed to fit 2009–2017 Yamaha YFZ450R models and the 2010 Yamaha YFZ450X. Verify engine specifications, bore requirements, and compression compatibility before installation. Professional installation and appropriate tuning are recommended to ensure proper fitment and performance.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eBore: 97.96 mm forged big bore piston design for increased engine displacement\u003c\/li\u003e\n\u003cli\u003eCompression Ratio: 12.0:1 for enhanced torque and peak horsepower potential\u003c\/li\u003e\n\u003cli\u003ePiston Coating: Molybdenum disulfide skirt coating supports faster break-in and reduced friction\u003c\/li\u003e\n\u003cli\u003eHeat Treatment: T-5 hardening and tempering cycle improves piston strength and durability\u003c\/li\u003e\n\u003cli\u003eKit Contents: Includes piston, rings, wrist pin, and circlips\u003c\/li\u003e\n\u003cli\u003eFitment: Fits 2009–2017 Yamaha YFZ450R and 2010 Yamaha YFZ450X models\u003c\/li\u003e\n\u003cli\u003eBrand: Cylinder Works\u003c\/li\u003e\n\u003cli\u003eManufacturer Part Number: 23403B\u003c\/li\u003e\n\u003cli\u003eVendor Part Number: 422-210011B\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\n2004 Yamaha YFZ450\u003cbr\u003e\n2005 Yamaha YFZ450\u003cbr\u003e\n2006 Yamaha YFZ450\u003cbr\u003e\n2007 Yamaha YFZ450\u003cbr\u003e\n2008 Yamaha YFZ450\u003cbr\u003e\n2009 Yamaha YFZ450\u003cbr\u003e\n2009 Yamaha YFZ450R\u003cbr\u003e\n2009 Yamaha YFZ450R SE\u003cbr\u003e\n2010 Yamaha YFZ450R\u003cbr\u003e\n2010 Yamaha YFZ450R SE\u003cbr\u003e\n2010 Yamaha YFZ450X\u003cbr\u003e\n2011 Yamaha YFZ450R\u003cbr\u003e\n2011 Yamaha YFZ450R SE\u003cbr\u003e\n2011 Yamaha YFZ450X\u003cbr\u003e\n2012 Yamaha YFZ450\u003cbr\u003e\n2012 Yamaha YFZ450R\u003cbr\u003e\n2012 Yamaha YFZ450R SE\u003cbr\u003e\n2013 Yamaha YFZ450\u003cbr\u003e\n2013 Yamaha YFZ450R\u003cbr\u003e\n2013 Yamaha YFZ450R SE\u003cbr\u003e\n2014 Yamaha YFZ450R\u003cbr\u003e\n2014 Yamaha YFZ450R SE\u003cbr\u003e\n2015 Yamaha YFZ450R\u003cbr\u003e\n2015 Yamaha YFZ450R SE\u003cbr\u003e\n2016 Yamaha YFZ450R\u003cbr\u003e\n2016 Yamaha YFZ450R SE\u003cbr\u003e\n2017 Yamaha YFZ450R\u003cbr\u003e\n2017 Yamaha YFZ450R SE\u003cbr\u003e\n2018 Yamaha YFZ450R\u003cbr\u003e\n2018 Yamaha YFZ450R SE\u003cbr\u003e\n2019 Yamaha YFZ450R\u003cbr\u003e\n2019 Yamaha YFZ450R SE\u003cbr\u003e\n2020 Yamaha YFZ450R\u003cbr\u003e\n2020 Yamaha YFZ450R SE\u003cbr\u003e\n2021 Yamaha YFZ450R\u003cbr\u003e\n2022 Yamaha YFZ450R\u003cbr\u003e\n2022 Yamaha YFZ450R SE\u003cbr\u003e\n2023 Yamaha YFZ450R\u003cbr\u003e\n2023 Yamaha YFZ450R SE","brand":"CYLINDER WORKS","offers":[{"title":"Default Title","offer_id":67550937907435,"sku":"422-210011B","price":300.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/7a42-572a689bc9b43.jpg?v=1790713030"},{"product_id":"cylinder-works-power-valve-big-bore-piston-kit-72-00-mm-for-yamaha-yz250-cw-pv-k02","title":"Cylinder Works Power Valve Big Bore Piston Kit 72.00 mm for Yamaha YZ250, CW-PV-K02","description":"\u003cp\u003eUpgrade your two-stroke performance with the Cylinder Works Power Valve Big Bore Piston Kit, manufacturer part number CW-PV-K02. Designed for select Yamaha YZ250 models from 1999 through 2008, this kit uses a 72.00 mm piston to increase engine displacement and support stronger torque and peak horsepower. It is a direct-fit performance solution for riders and builders seeking dependable replacement components with improved break-in characteristics.\u003c\/p\u003e\u003cp\u003eThe piston skirt is coated with high-tech molybdenum disulfide to help reduce friction during initial operation, promote faster break-in, and support extended piston life. Each piston is heat treated using a T-5 hardening and tempering cycle for added durability under demanding operating conditions. The kit includes the piston, piston rings, wrist pin, and circlips for a complete installation.\u003c\/p\u003e\u003cp\u003eFitment includes 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, and 2008 Yamaha YZ250 models. Verify the motorcycle year, engine specifications, and required bore size before installation. This Cylinder Works kit is supplied under part number CW-PV-K02 and is intended for applications requiring a 72.00 mm big bore power valve piston assembly.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e72.00 mm big bore piston kit designed for select 1999-2008 Yamaha YZ250 models\u003c\/li\u003e\n\u003cli\u003eCylinder Works Power Valve design increases engine displacement, torque, and peak horsepower\u003c\/li\u003e\n\u003cli\u003ePiston skirt features a high-tech molybdenum disulfide coating for faster break-in and increased piston life\u003c\/li\u003e\n\u003cli\u003eT-5 heat-treated, hardened, and tempered piston construction supports durability\u003c\/li\u003e\n\u003cli\u003eKit includes piston, piston rings, wrist pin, and circlips\u003c\/li\u003e\n\u003cli\u003eManufacturer part number: CW-PV-K02\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\n1999 Yamaha YZ250\u003cbr\u003e\n2000 Yamaha YZ250\u003cbr\u003e\n2001 Yamaha YZ250\u003cbr\u003e\n2002 Yamaha YZ250\u003cbr\u003e\n2003 Yamaha YZ250\u003cbr\u003e\n2004 Yamaha YZ250\u003cbr\u003e\n2005 Yamaha YZ250\u003cbr\u003e\n2006 Yamaha YZ250\u003cbr\u003e\n2007 Yamaha YZ250\u003cbr\u003e\n2008 Yamaha YZ250\u003cbr\u003e\n2009 Yamaha YZ250\u003cbr\u003e\n2010 Yamaha YZ250\u003cbr\u003e\n2011 Yamaha YZ250\u003cbr\u003e\n2012 Yamaha YZ250\u003cbr\u003e\n2013 Yamaha YZ250\u003cbr\u003e\n2014 Yamaha YZ250\u003cbr\u003e\n2015 Yamaha YZ250\u003cbr\u003e\n2016 Yamaha YZ250\u003cbr\u003e\n2017 Yamaha YZ250\u003cbr\u003e\n2018 Yamaha YZ250\u003cbr\u003e\n2019 Yamaha YZ250\u003cbr\u003e\n2020 Yamaha YZ250\u003cbr\u003e\n2021 Yamaha YZ250\u003cbr\u003e\n2022 Yamaha YZ250\u003cbr\u003e\n2023 Yamaha YZ250\u003cbr\u003e\n2024 Yamaha YZ250\u003cbr\u003e\n2025 Yamaha YZ250","brand":"CYLINDER WORKS","offers":[{"title":"Default Title","offer_id":67550942003435,"sku":"422-2002PV","price":394.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/8fc6-5a58e359dd6bc.jpg?v=1790713124"},{"product_id":"cylinder-works-ch2005-k01-standard-cylinder-head-kit-for-2005-2014-yamaha-yz125","title":"Cylinder Works CH2005-K01 Standard Cylinder Head Kit for 2005–2014 Yamaha YZ125","description":"\u003cp\u003eThe Cylinder Works CH2005-K01 Standard Cylinder Head Kit is a new replacement cylinder head designed for select 2005–2014 Yamaha YZ125 two-stroke motorcycles. Manufactured by Cylinder Works, this cylinder head assembly is engineered to provide a reliable replacement for the original component while supporting performance-focused engine rebuilding and servicing.\u003c\/p\u003e\u003cp\u003eThe kit includes cam caps and cam cap bolts, along with C630 nickel\/aluminum\/bronze valve seats and guides. It receives a competition valve job, shortened valve guides for compatibility with higher-lift camshafts, an unshrouded combustion chamber, a blended bowl, and stock-shaped ports. These features make the Cylinder Works CH2005-K01 suitable for riders and technicians seeking a prepared replacement cylinder head for standard or performance-oriented YZ125 engine applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e This standard cylinder head kit fits 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, and 2014 Yamaha YZ125 models. The kit does not include valves, valve springs, or lifters; reuse compatible components or purchase the required parts separately according to the engine configuration and service requirements.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e CH2005-K01\u003cbr\u003e\u003cstrong\u003eVendor Part Number:\u003c\/strong\u003e 422-2005HD\u003cbr\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e Cylinder Works\u003cbr\u003e\u003cstrong\u003eModel:\u003c\/strong\u003e Standard Cylinder Head Kit\u003cbr\u003e\u003cstrong\u003eSize:\u003c\/strong\u003e Standard\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eNew replacement cylinder head\u003c\/li\u003e\n\u003cli\u003eIncludes cam caps and cam cap bolts\u003c\/li\u003e\n\u003cli\u003eIncludes C630 nickel\/aluminum\/bronze valve seats and guides\u003c\/li\u003e\n\u003cli\u003eCompetition valve job\u003c\/li\u003e\n\u003cli\u003eShortened valve guides for compatibility with higher-lift camshafts\u003c\/li\u003e\n\u003cli\u003eUnshrouded combustion chamber\u003c\/li\u003e\n\u003cli\u003eBlended bowl\u003c\/li\u003e\n\u003cli\u003eStock-shaped ports\u003c\/li\u003e\n\u003cli\u003eFits 2005–2014 Yamaha YZ125 models\u003c\/li\u003e\n\u003cli\u003eDoes not include valves, valve springs, or lifters\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\n2005 Yamaha YZ125\u003cbr\u003e\n2006 Yamaha YZ125\u003cbr\u003e\n2007 Yamaha YZ125\u003cbr\u003e\n2008 Yamaha YZ125\u003cbr\u003e\n2009 Yamaha YZ125\u003cbr\u003e\n2010 Yamaha YZ125\u003cbr\u003e\n2011 Yamaha YZ125\u003cbr\u003e\n2012 Yamaha YZ125\u003cbr\u003e\n2013 Yamaha YZ125\u003cbr\u003e\n2014 Yamaha YZ125\u003cbr\u003e\n2015 Yamaha YZ125\u003cbr\u003e\n2016 Yamaha YZ125\u003cbr\u003e\n2017 Yamaha YZ125\u003cbr\u003e\n2018 Yamaha YZ125\u003cbr\u003e\n2019 Yamaha YZ125\u003cbr\u003e\n2020 Yamaha YZ125\u003cbr\u003e\n2021 Yamaha YZ125","brand":"CYLINDER WORKS","offers":[{"title":"Default Title","offer_id":67550945575147,"sku":"422-2005HD","price":145.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/6a9e-60ac0210deecc.png?v=1790713190"},{"product_id":"cylinder-works-ch2001-k02-standard-cylinder-head-kit-for-yamaha-yz250x","title":"Cylinder Works CH2001-K02 Standard Cylinder Head Kit for Yamaha YZ250X","description":"\u003cp\u003eUpgrade or restore the top end of your two-stroke off-road motorcycle with the Cylinder Works CH2001-K02 Standard Cylinder Head Kit. Designed as a new replacement cylinder head for Yamaha YZ250X models, this kit is built for riders and technicians who need a prepared head with performance-oriented machine work already completed. It fits Yamaha YZ250X models from 2016 through 2025, providing broad model-year coverage for replacement, rebuild, and engine service applications.\u003c\/p\u003e\u003cp\u003eManufactured by Cylinder Works and sold under vendor part number 422-2002HD, this cylinder head includes cam caps and cam cap bolts for a straightforward installation. The head is fitted with C630 nickel\/aluminum\/bronze valve seats and guides, along with a competition valve job to support reliable valve sealing and proper engine performance. The combustion chamber is unshrouded, the bowl is blended, and the ports retain a stock shape to maintain a practical balance between airflow and compatibility with the original engine design.\u003c\/p\u003e\u003cp\u003eThe valve guides are shortened to accommodate higher-lift camshafts, making this cylinder head suitable for performance-oriented engine builds when matched with compatible components. This is a cylinder head only and does not include valves, valve springs, or lifters. Verify the existing or replacement valvetrain components, engine configuration, and model year before installation. Professional installation and appropriate engine setup are recommended to ensure correct clearances, camshaft compatibility, and reliable operation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e 2016-2025 Yamaha YZ250X.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eNew replacement cylinder head\u003c\/li\u003e\n\u003cli\u003eIncludes cam caps and cam cap bolts\u003c\/li\u003e\n\u003cli\u003eIncludes C630 nickel\/aluminum\/bronze valve seats and guides\u003c\/li\u003e\n\u003cli\u003eCompetition valve job\u003c\/li\u003e\n\u003cli\u003eShortened valve guides for higher-lift camshafts\u003c\/li\u003e\n\u003cli\u003eUnshrouded combustion chamber\u003c\/li\u003e\n\u003cli\u003eBlended bowl\u003c\/li\u003e\n\u003cli\u003eStock-shaped ports\u003c\/li\u003e\n\u003cli\u003eDoes not include valves, valve springs, or lifters\u003c\/li\u003e\n\u003cli\u003eFits 2016-2025 Yamaha YZ250X models\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\n2016 Yamaha YZ250X\u003cbr\u003e\n2017 Yamaha YZ250X\u003cbr\u003e\n2018 Yamaha YZ250X\u003cbr\u003e\n2019 Yamaha YZ250X\u003cbr\u003e\n2020 Yamaha YZ250X\u003cbr\u003e\n2021 Yamaha YZ250X\u003cbr\u003e\n2022 Yamaha YZ250X\u003cbr\u003e\n2023 Yamaha YZ250X\u003cbr\u003e\n2024 Yamaha YZ250X\u003cbr\u003e\n2025 Yamaha YZ250X","brand":"CYLINDER WORKS","offers":[{"title":"Default Title","offer_id":67550949736683,"sku":"422-2002HD","price":168.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/32c6-6842f46c6b684.png?v=1790713283"},{"product_id":"cylinder-works-ch2001-k01-standard-cylinder-head-kit-for-1999-2008-yamaha-yz250","title":"Cylinder Works CH2001-K01 Standard Cylinder Head Kit for 1999–2008 Yamaha YZ250","description":"\u003cp\u003eRestore reliable top-end performance with the Cylinder Works CH2001-K01 standard replacement cylinder head kit for select Yamaha YZ250 models. Designed as a direct-fit replacement for the original cylinder head, this kit is compatible with 1999 through 2008 Yamaha YZ250 motorcycles and provides a prepared foundation for engine rebuilding, maintenance, or performance applications.\u003c\/p\u003e\u003cp\u003eThe Cylinder Works cylinder head includes cam caps and cam cap bolts, along with C630 nickel\/aluminum\/bronze valve seats and guides selected for durability and dependable service. It is finished with a competition valve job, shortened valve guides to accommodate higher-lift camshafts, an unshrouded combustion chamber, blended bowl, and stock-shaped ports. These features support proper airflow and consistent combustion while retaining the original-style port configuration for straightforward installation and tuning.\u003c\/p\u003e\u003cp\u003eThis kit does not include valves, valve springs, or lifters, so those components must be sourced separately or reused when appropriate. Verify engine specifications and existing components before installation. The Cylinder Works CH2001-K01 is intended for the following applications: 1999 Yamaha YZ250, 2000 Yamaha YZ250, 2001 Yamaha YZ250, 2002 Yamaha YZ250, 2003 Yamaha YZ250, 2004 Yamaha YZ250, 2005 Yamaha YZ250, 2006 Yamaha YZ250, 2007 Yamaha YZ250, and 2008 Yamaha YZ250.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eNew replacement cylinder head for select Yamaha YZ250 motorcycles\u003c\/li\u003e\n\u003cli\u003eIncludes cam caps and cam cap bolts\u003c\/li\u003e\n\u003cli\u003eIncludes C630 nickel\/aluminum\/bronze valve seats and guides\u003c\/li\u003e\n\u003cli\u003eCompleted with a competition valve job\u003c\/li\u003e\n\u003cli\u003eShortened valve guides accommodate higher-lift camshafts\u003c\/li\u003e\n\u003cli\u003eUnshrouded combustion chamber promotes efficient combustion\u003c\/li\u003e\n\u003cli\u003eBlended bowl supports smooth airflow\u003c\/li\u003e\n\u003cli\u003eStock-shaped ports maintain original-style airflow characteristics\u003c\/li\u003e\n\u003cli\u003eStandard model configuration\u003c\/li\u003e\n\u003cli\u003eDoes not include valves, valve springs, or lifters\u003c\/li\u003e\n\u003cli\u003eBrand: Cylinder Works\u003c\/li\u003e\n\u003cli\u003eManufacturer part number: CH2001-K01\u003c\/li\u003e\n\u003cli\u003eVendor part number: 422-2001HD\u003c\/li\u003e\n\u003cli\u003eFitment: 1999–2008 Yamaha YZ250\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\n1999 Yamaha YZ250\u003cbr\u003e\n2000 Yamaha YZ250\u003cbr\u003e\n2001 Yamaha YZ250\u003cbr\u003e\n2002 Yamaha YZ250\u003cbr\u003e\n2003 Yamaha YZ250\u003cbr\u003e\n2004 Yamaha YZ250\u003cbr\u003e\n2005 Yamaha YZ250\u003cbr\u003e\n2006 Yamaha YZ250\u003cbr\u003e\n2007 Yamaha YZ250\u003cbr\u003e\n2008 Yamaha YZ250\u003cbr\u003e\n2009 Yamaha YZ250\u003cbr\u003e\n2010 Yamaha YZ250\u003cbr\u003e\n2011 Yamaha YZ250\u003cbr\u003e\n2012 Yamaha YZ250\u003cbr\u003e\n2013 Yamaha YZ250\u003cbr\u003e\n2014 Yamaha YZ250\u003cbr\u003e\n2015 Yamaha YZ250\u003cbr\u003e\n2016 Yamaha YZ250\u003cbr\u003e\n2017 Yamaha YZ250\u003cbr\u003e\n2018 Yamaha YZ250\u003cbr\u003e\n2019 Yamaha YZ250\u003cbr\u003e\n2020 Yamaha YZ250\u003cbr\u003e\n2021 Yamaha YZ250\u003cbr\u003e\n2022 Yamaha YZ250\u003cbr\u003e\n2023 Yamaha YZ250\u003cbr\u003e\n2024 Yamaha YZ250\u003cbr\u003e\n2025 Yamaha YZ250","brand":"CYLINDER WORKS","offers":[{"title":"Default Title","offer_id":67550954258667,"sku":"422-2001HD","price":262.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/96b6-5a58e275a5a61.jpg?v=1790713362"},{"product_id":"cylinder-works-ch1003-k01-cylinder-head-kit-with-bronze-valve-seats-for-honda-crf250r-and-crf250x","title":"Cylinder Works CH1003-K01 Cylinder Head Kit with Bronze Valve Seats for Honda CRF250R and CRF250X","description":"\u003cp\u003eThe Cylinder Works CH1003-K01 Cylinder Head Kit is a new replacement cylinder head designed for select Honda CRF250R and CRF250X four-stroke engines. This performance-ready assembly includes cam caps and cam cap bolts, providing essential components for a reliable cylinder head replacement or engine rebuild. The kit is engineered for fitment on 2004-2007 Honda CRF250R models and 2004-2006 Honda CRF250X models.\u003c\/p\u003e\u003cp\u003eThe Cylinder Works cylinder head features C630 nickel\/aluminum\/bronze valve seats and guides for durability in demanding riding conditions. A competition valve job, shortened valve guides for higher-lift camshaft compatibility, an unshrouded combustion chamber, and a blended bowl help support improved airflow and efficient combustion. The ports retain a stock shape to maintain practical compatibility with the original engine configuration and related components.\u003c\/p\u003e\u003cp\u003eThis Cylinder Works CH1003-K01 kit does not include valves, valve springs, or lifters. Confirm the existing engine configuration and compare the application details before installation. Manufacturer and vendor part number: CH1003-K01. Cylinder Works part number: CH1003-K01.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eNew replacement cylinder head for select Honda CRF250R and CRF250X models\u003c\/li\u003e\n\u003cli\u003eIncludes cam caps and cam cap bolts\u003c\/li\u003e\n\u003cli\u003eC630 nickel\/aluminum\/bronze valve seats and guides\u003c\/li\u003e\n\u003cli\u003eCompetition valve job\u003c\/li\u003e\n\u003cli\u003eShortened valve guides for higher-lift camshaft compatibility\u003c\/li\u003e\n\u003cli\u003eUnshrouded combustion chamber\u003c\/li\u003e\n\u003cli\u003eBlended bowl for optimized airflow\u003c\/li\u003e\n\u003cli\u003eStock-shaped ports for compatibility with the original engine configuration\u003c\/li\u003e\n\u003cli\u003eDoes not include valves, valve springs, or lifters\u003c\/li\u003e\n\u003cli\u003eFitment: 2004-2007 Honda CRF250R and 2004-2006 Honda CRF250X\u003c\/li\u003e\n\u003cli\u003eBrand: Cylinder Works\u003c\/li\u003e\n\u003cli\u003eManufacturer and vendor part number: CH1003-K01\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\n2004 Honda CRF250R\u003cbr\u003e\n2004 Honda CRF250X\u003cbr\u003e\n2005 Honda CRF250R\u003cbr\u003e\n2005 Honda CRF250X\u003cbr\u003e\n2006 Honda CRF250R\u003cbr\u003e\n2006 Honda CRF250X\u003cbr\u003e\n2007 Honda CRF250R","brand":"CYLINDER WORKS","offers":[{"title":"Default Title","offer_id":67550957601003,"sku":"422-1003HD","price":622.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/c239-5a58e25156332.jpg?v=1790713423"},{"product_id":"cylinder-works-ch1001-k01-bronze-cylinder-head-kit-for-2009-honda-crf250r","title":"Cylinder Works CH1001-K01 Bronze Cylinder Head Kit for 2009 Honda CRF250R","description":"\u003cp\u003eThe Cylinder Works CH1001-K01 Bronze Cylinder Head Kit is a new replacement cylinder head designed for the 2009 Honda CRF250R. It provides a prepared cylinder head assembly for engine rebuilding, performance upgrades, or replacement applications while maintaining stock-shaped ports for dependable fitment and practical engine performance. This kit is engineered specifically for the 2009 Honda CRF250R and is supplied by Cylinder Works.\u003c\/p\u003e\u003cp\u003eThe cylinder head includes cam caps and cam cap bolts, along with C630 nickel\/aluminum\/bronze valve seats and guides for enhanced durability in demanding motocross and high-performance conditions. A competition valve job, shortened valve guides for higher-lift cam compatibility, an unshrouded combustion chamber, and a blended bowl help support improved cylinder head preparation and airflow. The stock-shaped ports retain the original port configuration for straightforward installation and compatibility with the specified motorcycle application.\u003c\/p\u003e\u003cp\u003eThis Cylinder Works replacement cylinder head does not include valves, valve springs, or lifters. Confirm that the remaining engine components and selected camshaft are compatible before installation. The manufacturer part number is CH1001-K01, and the vendor part number is 422-1001HD. Fitment is for the 2009 Honda CRF250R only.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eReplacement cylinder head: New Cylinder Works head for the 2009 Honda CRF250R\u003c\/li\u003e\n\u003cli\u003eCam hardware included: Includes cam caps and cam cap bolts\u003c\/li\u003e\n\u003cli\u003eC630 valve seats and guides: Nickel\/aluminum\/bronze components provide durable valve-train support\u003c\/li\u003e\n\u003cli\u003eCompetition valve job: Professionally prepared valve seats for performance engine applications\u003c\/li\u003e\n\u003cli\u003eShortened valve guides: Designed to accommodate higher-lift camshafts\u003c\/li\u003e\n\u003cli\u003eUnshrouded combustion chamber: Supports improved combustion chamber clearance around the valves\u003c\/li\u003e\n\u003cli\u003eBlended bowl: Helps provide a smooth transition in the combustion chamber area\u003c\/li\u003e\n\u003cli\u003eStock-shaped ports: Maintains the original port configuration for specified fitment\u003c\/li\u003e\n\u003cli\u003eComponents excluded: Valves, valve springs, and lifters are not included\u003c\/li\u003e\n\u003cli\u003eFitment: Fits 2009 Honda CRF250R\u003c\/li\u003e\n\u003cli\u003eBrand: Cylinder Works\u003c\/li\u003e\n\u003cli\u003eManufacturer part number: CH1001-K01\u003c\/li\u003e\n\u003cli\u003eVendor part number: 422-1001HD\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\n2009 Honda CRF250R","brand":"CYLINDER WORKS","offers":[{"title":"Default Title","offer_id":67550961303787,"sku":"422-1001HD","price":592.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/9532-572a689a0a987.jpg?v=1790713481"},{"product_id":"cylinder-works-cw-pv-k01-standard-power-valve-kit-for-yamaha-yz250","title":"Cylinder Works CW-PV-K01 Standard Power Valve Kit for Yamaha YZ250","description":"\u003cp\u003eThe Cylinder Works CW-PV-K01 Standard Power Valve Kit is designed for Yamaha YZ250 two-stroke engines from 1999 through 2008. This replacement power valve kit helps restore proper exhaust-valve operation and supports consistent engine performance across the operating range. It is a practical service component for riders, technicians, and rebuilders maintaining a compatible Yamaha YZ250.\u003c\/p\u003e\u003cp\u003eManufactured by Cylinder Works, the CW-PV-K01 is built as a standard-size replacement component for applications requiring dependable fit and function. Properly operating power-valve components help the engine transition smoothly through the powerband, contributing to responsive throttle control and predictable performance. The kit is intended for direct application to the listed motorcycle models, subject to comparison with the original equipment and engine configuration.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e This Cylinder Works standard power valve kit fits 1999–2008 Yamaha YZ250 models. Verify the motorcycle year, model, and existing power-valve assembly before installation. Manufacturer part number CW-PV-K01 and vendor part number 422-2001PV are provided for identification and service reference.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eStandard-size power valve kit for compatible Yamaha YZ250 engines\u003c\/li\u003e\n\u003cli\u003eCylinder Works replacement component for power-valve service and engine rebuilding\u003c\/li\u003e\n\u003cli\u003eDesigned to support proper exhaust-valve operation and consistent power delivery\u003c\/li\u003e\n\u003cli\u003eFits 1999–2008 Yamaha YZ250 models\u003c\/li\u003e\n\u003cli\u003eManufacturer part number: CW-PV-K01\u003c\/li\u003e\n\u003cli\u003eVendor part number: 422-2001PV\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\n1999 Yamaha YZ250\u003cbr\u003e\n2000 Yamaha YZ250\u003cbr\u003e\n2001 Yamaha YZ250\u003cbr\u003e\n2002 Yamaha YZ250\u003cbr\u003e\n2003 Yamaha YZ250\u003cbr\u003e\n2004 Yamaha YZ250\u003cbr\u003e\n2005 Yamaha YZ250\u003cbr\u003e\n2006 Yamaha YZ250\u003cbr\u003e\n2007 Yamaha YZ250\u003cbr\u003e\n2008 Yamaha YZ250\u003cbr\u003e\n2009 Yamaha YZ250\u003cbr\u003e\n2010 Yamaha YZ250\u003cbr\u003e\n2011 Yamaha YZ250\u003cbr\u003e\n2012 Yamaha YZ250\u003cbr\u003e\n2013 Yamaha YZ250\u003cbr\u003e\n2014 Yamaha YZ250\u003cbr\u003e\n2015 Yamaha YZ250\u003cbr\u003e\n2016 Yamaha YZ250\u003cbr\u003e\n2017 Yamaha YZ250\u003cbr\u003e\n2018 Yamaha YZ250\u003cbr\u003e\n2019 Yamaha YZ250\u003cbr\u003e\n2020 Yamaha YZ250\u003cbr\u003e\n2021 Yamaha YZ250\u003cbr\u003e\n2022 Yamaha YZ250\u003cbr\u003e\n2023 Yamaha YZ250\u003cbr\u003e\n2024 Yamaha YZ250\u003cbr\u003e\n2025 Yamaha YZ250","brand":"CYLINDER WORKS","offers":[{"title":"Default Title","offer_id":67550966284523,"sku":"422-2001PV","price":252.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/f7fd-592bce48ec4ce.jpg?v=1790713582"},{"product_id":"cylinder-works-61003-g01-big-bore-cylinder-and-piston-kit-for-polaris-98-mm-5-0-mm","title":"Cylinder Works 61003-G01 Big Bore Cylinder and Piston Kit for Polaris 98 mm +5.0 mm","description":"\u003cp\u003eThe Cylinder Works 61003-G01 Top End Gasket Kit and Big Bore Cylinder and Piston Kit is designed for select Polaris off-road vehicles using a 98 mm +5.0 mm bore configuration. This complete replacement assembly includes the cylinder, piston kit, and required gaskets for a streamlined top-end installation. The cylinder maintains a stock-style appearance while providing a reliable replacement solution for worn or damaged original components.\u003c\/p\u003e\u003cp\u003eNickel silicon carbide plating helps promote long service life, consistent cylinder performance, and improved resistance to wear. The kit is engineered as a standard-bore replacement option for compatible applications and requires no machine work, helping simplify installation when rebuilding the top end. Replacement standard-bore cylinders, piston kits, and ring sets are also available from Cylinder Works when individual components are needed.\u003c\/p\u003e\u003cp\u003eFitment includes the 2016 Polaris General 1000 EPS and Ranger Crew XP 900-5 EPS; 2017 Polaris RZR 4 900 EPS, RZR XP 4 1000 EPS, Ranger XP 900, Ranger XP 900 EPS, General 1000 EPS, General 4 1000 EPS, Ranger Crew XP 1000, and Ranger Crew XP 1000 EPS. Confirm the vehicle model, year, engine configuration, and bore specification before ordering. The manufacturer part number is 61003-G01, and the vendor part number is 422-610033.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eComplete top-end kit includes the cylinder, piston kit, and gaskets\u003c\/li\u003e\n\u003cli\u003e98 mm +5.0 mm bore configuration for compatible Polaris applications\u003c\/li\u003e\n\u003cli\u003eStock-style cylinder appearance for an original-equipment look\u003c\/li\u003e\n\u003cli\u003eNickel silicon carbide plating helps provide long service life and wear resistance\u003c\/li\u003e\n\u003cli\u003eNo machine work needed for installation on compatible applications\u003c\/li\u003e\n\u003cli\u003eReplacement standard-bore cylinders, piston kits, and ring sets are available\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\n2013 Polaris Ranger XP 900\u003cbr\u003e\n2014 Polaris Ranger Crew 900\u003cbr\u003e\n2014 Polaris Ranger XP 900\u003cbr\u003e\n2014 Polaris RZR XP 1000\u003cbr\u003e\n2014 Polaris RZR XP 4 1000 EPS\u003cbr\u003e\n2015 Polaris Ranger Crew 900\u003cbr\u003e\n2015 Polaris Ranger XP 900\u003cbr\u003e\n2015 Polaris RZR 4 900 EPS\u003cbr\u003e\n2015 Polaris RZR 900\u003cbr\u003e\n2015 Polaris RZR XP 1000\u003cbr\u003e\n2015 Polaris RZR XP 4 1000 EPS\u003cbr\u003e\n2016 Polaris ACE 900 SP EPS\u003cbr\u003e\n2016 Polaris General 1000 EPS\u003cbr\u003e\n2016 Polaris Ranger Crew XP 900-5\u003cbr\u003e\n2016 Polaris Ranger Crew XP 900-5 EPS\u003cbr\u003e\n2016 Polaris Ranger Crew XP 900-6\u003cbr\u003e\n2016 Polaris Ranger Crew XP 900-6 EPS\u003cbr\u003e\n2016 Polaris Ranger XP 900\u003cbr\u003e\n2016 Polaris RZR 1000 S EPS\u003cbr\u003e\n2016 Polaris RZR 4 900 EPS\u003cbr\u003e\n2016 Polaris RZR 900\u003cbr\u003e\n2016 Polaris RZR XP 1000\u003cbr\u003e\n2017 Polaris ACE 900 Xc\u003cbr\u003e\n2017 Polaris General 1000 EPS\u003cbr\u003e\n2017 Polaris General 4 1000 EPS\u003cbr\u003e\n2017 Polaris Ranger Crew 1000 Diesel\u003cbr\u003e\n2017 Polaris Ranger Crew XP 1000\u003cbr\u003e\n2017 Polaris Ranger Crew XP 1000 EPS\u003cbr\u003e\n2017 Polaris Ranger Crew XP 1000 High Lifter Edition EPS\u003cbr\u003e\n2017 Polaris Ranger Crew XP 1000 Northstar HVAC Edition EPS\u003cbr\u003e\n2017 Polaris Ranger Crew XP 900\u003cbr\u003e\n2017 Polaris Ranger Crew XP 900 EPS\u003cbr\u003e\n2017 Polaris Ranger XP 900\u003cbr\u003e\n2017 Polaris Ranger XP 900 EPS\u003cbr\u003e\n2017 Polaris RZR 1000 S EPS\u003cbr\u003e\n2017 Polaris RZR 4 900 EPS\u003cbr\u003e\n2017 Polaris RZR 900\u003cbr\u003e\n2017 Polaris RZR 900 EPS\u003cbr\u003e\n2017 Polaris RZR 900 S\u003cbr\u003e\n2017 Polaris RZR 900 S EPS\u003cbr\u003e\n2017 Polaris RZR 900 XC Edition EPS\u003cbr\u003e\n2017 Polaris RZR XP 1000\u003cbr\u003e\n2017 Polaris RZR XP 1000 EPS\u003cbr\u003e\n2017 Polaris RZR XP 1000 High Lifter Edition EPS\u003cbr\u003e\n2017 Polaris RZR XP 1000 LE Gold Matte Metallic EPS\u003cbr\u003e\n2017 Polaris RZR XP 1000 LE Velocity Blue EPS\u003cbr\u003e\n2017 Polaris RZR XP 4 1000 EPS\u003cbr\u003e\n2017 Polaris RZR XP 4 1000 High Lifter Edition EPS\u003cbr\u003e\n2018 Polaris ACE 900 Xc\u003cbr\u003e\n2018 Polaris General 1000 EPS\u003cbr\u003e\n2018 Polaris General 4 1000 EPS\u003cbr\u003e\n2018 Polaris General 4 1000 Ride Command Edition EPS\u003cbr\u003e\n2018 Polaris Ranger 1000 Diesel\u003cbr\u003e\n2018 Polaris Ranger Crew 1000 Diesel\u003cbr\u003e\n2018 Polaris Ranger Crew XP 1000 EPS\u003cbr\u003e\n2018 Polaris Ranger Crew XP 1000 High Lifter Edition EPS\u003cbr\u003e\n2018 Polaris Ranger Crew XP 1000 Northstar HVAC Edition EPS\u003cbr\u003e\n2018 Polaris Ranger Crew XP 900\u003cbr\u003e\n2018 Polaris Ranger Crew XP 900 EPS\u003cbr\u003e\n2018 Polaris Ranger XP 1000 EPS\u003cbr\u003e\n2018 Polaris Ranger XP 1000 High Lifter Edition EPS\u003cbr\u003e\n2018 Polaris Ranger XP 1000 Northstar HVAC\u003cbr\u003e\n2018 Polaris Ranger XP 900\u003cbr\u003e\n2018 Polaris Ranger XP 900 EPS\u003cbr\u003e\n2018 Polaris RZR 1000 RS1\u003cbr\u003e\n2018 Polaris RZR 1000 S EPS\u003cbr\u003e\n2018 Polaris RZR 4 900 EPS\u003cbr\u003e\n2018 Polaris RZR 900\u003cbr\u003e\n2018 Polaris RZR 900 EPS\u003cbr\u003e\n2018 Polaris RZR 900 S\u003cbr\u003e\n2018 Polaris RZR 900 S EPS\u003cbr\u003e\n2018 Polaris RZR S4 900 EPS\u003cbr\u003e\n2018 Polaris RZR XP 1000 EPS\u003cbr\u003e\n2018 Polaris RZR XP 1000 High Lifter Edition EPS\u003cbr\u003e\n2018 Polaris RZR XP 1000 Ride Command EPS\u003cbr\u003e\n2018 Polaris RZR XP 1000 Trails \u0026amp; Rocks EPS\u003cbr\u003e\n2018 Polaris RZR XP 4 1000 EPS\u003cbr\u003e\n2018 Polaris RZR XP 4 1000 High Lifter Edition EPS\u003cbr\u003e\n2018 Polaris RZR XP 4 1000 Ride Command Edition EPS\u003cbr\u003e\n2019 Polaris ACE 900 Xc\u003cbr\u003e\n2019 Polaris General 1000 EPS\u003cbr\u003e\n2019 Polaris General 4 1000 EPS\u003cbr\u003e\n2019 Polaris General 4 1000 Ride Command Edition EPS\u003cbr\u003e\n2019 Polaris Ranger Crew XP 1000 EPS\u003cbr\u003e\n2019 Polaris Ranger Crew XP 1000 High Lifter Edition EPS\u003cbr\u003e\n2019 Polaris Ranger Crew XP 1000 Northstar Edition EPS\u003cbr\u003e\n2019 Polaris Ranger Crew XP 1000 Northstar HVAC Edition EPS\u003cbr\u003e\n2019 Polaris Ranger Crew XP 900\u003cbr\u003e\n2019 Polaris Ranger Crew XP 900 EPS\u003cbr\u003e\n2019 Polaris Ranger XP 1000 EPS\u003cbr\u003e\n2019 Polaris Ranger XP 1000 High Lifter Edition EPS\u003cbr\u003e\n2019 Polaris Ranger XP 1000 Northstar\u003cbr\u003e\n2019 Polaris Ranger XP 1000 Premium\u003cbr\u003e\n2019 Polaris Ranger XP 900\u003cbr\u003e\n2019 Polaris Ranger XP 900 EPS\u003cbr\u003e\n2019 Polaris Ranger XP 900 EPS Premium\u003cbr\u003e\n2019 Polaris RZR 1000 RS1\u003cbr\u003e\n2019 Polaris RZR 1000 S EPS\u003cbr\u003e\n2019 Polaris RZR 900\u003cbr\u003e\n2019 Polaris RZR 900 EPS\u003cbr\u003e\n2019 Polaris RZR 900 S\u003cbr\u003e\n2019 Polaris RZR 900 S EPS\u003cbr\u003e\n2019 Polaris RZR XP 1000 Dynamix\u003cbr\u003e\n2019 Polaris RZR XP 1000 EPS\u003cbr\u003e\n2019 Polaris RZR XP 1000 High Lifter Edition EPS\u003cbr\u003e\n2019 Polaris RZR XP 1000 Ride Command EPS\u003cbr\u003e\n2019 Polaris RZR XP 1000 Trails \u0026amp; Rocks EPS\u003cbr\u003e\n2019 Polaris RZR XP 4 1000 Dynamix\u003cbr\u003e\n2019 Polaris RZR XP 4 1000 EPS\u003cbr\u003e\n2019 Polaris RZR XP 4 1000 High Lifter Edition EPS\u003cbr\u003e\n2019 Polaris RZR XP 4 1000 Ride Command Edition EPS\u003cbr\u003e\n2020 Polaris General 1000 EPS\u003cbr\u003e\n2020 Polaris General 4 1000 Deluxe\u003cbr\u003e\n2020 Polaris General 4 1000 EPS\u003cbr\u003e\n2020 Polaris General XP 1000 Deluxe\u003cbr\u003e\n2020 Polaris General XP 4 1000 Deluxe\u003cbr\u003e\n2020 Polaris Ranger 1000\u003cbr\u003e\n2020 Polaris Ranger 1000 EPS\u003cbr\u003e\n2020 Polaris Ranger 1000 EPS [Fullsize]\u003cbr\u003e\n2020 Polaris Ranger 1000 Premium\u003cbr\u003e\n2020 Polaris Ranger Crew 1000\u003cbr\u003e\n2020 Polaris Ranger Crew 1000 EPS\u003cbr\u003e\n2020 Polaris Ranger Crew 1000 Premium\u003cbr\u003e\n2020 Polaris Ranger Crew XP 1000 High Lifter Edition EPS\u003cbr\u003e\n2020 Polaris Ranger Crew XP 1000 Northstar Premium EPS\u003cbr\u003e\n2020 Polaris Ranger Crew XP 1000 Northstar Ultimate EPS\u003cbr\u003e\n2020 Polaris Ranger Crew XP 1000 Premium EPS\u003cbr\u003e\n2020 Polaris Ranger Crew XP 1000 Texas Edition EPS\u003cbr\u003e\n2020 Polaris Ranger XP 1000 High Lifter Edition EPS\u003cbr\u003e\n2020 Polaris Ranger XP 1000 Northstar Premium\u003cbr\u003e\n2020 Polaris Ranger XP 1000 Northstar Ultimate\u003cbr\u003e\n2020 Polaris Ranger XP 1000 Premium\u003cbr\u003e\n2020 Polaris Ranger XP 1000 Texas Edition\u003cbr\u003e\n2020 Polaris RZR 1000 RS1\u003cbr\u003e\n2020 Polaris RZR 1000 S EPS\u003cbr\u003e\n2020 Polaris RZR 1000 Trail S\u003cbr\u003e\n2020 Polaris RZR 900 Trail\u003cbr\u003e\n2020 Polaris RZR 900 Trail Fox EPS\u003cbr\u003e\n2020 Polaris RZR 900 Trail Premium EPS\u003cbr\u003e\n2020 Polaris RZR 900 Trail S EPS\u003cbr\u003e\n2020 Polaris RZR 900 Trail S Premium EPS\u003cbr\u003e\n2020 Polaris RZR XP 1000 EPS\u003cbr\u003e\n2020 Polaris RZR XP 1000 High Lifter Edition EPS\u003cbr\u003e\n2020 Polaris RZR XP 1000 LE Onyx Black EPS\u003cbr\u003e\n2020 Polaris RZR XP 1000 Premium\u003cbr\u003e\n2020 Polaris RZR XP 1000 Trails \u0026amp; Rocks EPS\u003cbr\u003e\n2020 Polaris RZR XP 4 1000 EPS\u003cbr\u003e\n2020 Polaris RZR XP 4 1000 High Lifter Edition EPS\u003cbr\u003e\n2020 Polaris RZR XP 4 1000 LE Onyx Black EPS\u003cbr\u003e\n2020 Polaris RZR XP 4 1000 Premium\u003cbr\u003e\n2021 Polaris General 4 1000 Deluxe\u003cbr\u003e\n2021 Polaris General 4 1000 Deluxe Ride Command Edition\u003cbr\u003e\n2021 Polaris General 4 1000 Premium\u003cbr\u003e\n2021 Polaris General XP 1000 Deluxe\u003cbr\u003e\n2021 Polaris General XP 1000 Factory Custom Edition\u003cbr\u003e\n2021 Polaris General XP 1000 Pursuit Edition\u003cbr\u003e\n2021 Polaris General XP 4 1000 Deluxe\u003cbr\u003e\n2021 Polaris General XP 4 1000 Factory Custom Edition\u003cbr\u003e\n2021 Polaris General XP 4 1000 Premium\u003cbr\u003e\n2021 Polaris General XP 4 1000 Pursuit Edition\u003cbr\u003e\n2021 Polaris Ranger 1000\u003cbr\u003e\n2021 Polaris Ranger 1000 EPS\u003cbr\u003e\n2021 Polaris Ranger 1000 Premium\u003cbr\u003e\n2021 Polaris Ranger Crew 1000\u003cbr\u003e\n2021 Polaris Ranger Crew 1000 Premium\u003cbr\u003e\n2021 Polaris Ranger Crew XP 1000 High Lifter Edition EPS\u003cbr\u003e\n2021 Polaris Ranger Crew XP 1000 Northstar Premium EPS\u003cbr\u003e\n2021 Polaris Ranger Crew XP 1000 Northstar Trail Boss EPS\u003cbr\u003e\n2021 Polaris Ranger Crew XP 1000 Northstar Ultimate EPS\u003cbr\u003e\n2021 Polaris Ranger Crew XP 1000 Premium EPS\u003cbr\u003e\n2021 Polaris Ranger Crew XP 1000 Texas Edition EPS\u003cbr\u003e\n2021 Polaris Ranger Crew XP 1000 Trail Boss EPS\u003cbr\u003e\n2021 Polaris Ranger XP 1000 High Lifter Edition EPS\u003cbr\u003e\n2021 Polaris Ranger XP 1000 Northstar Premium\u003cbr\u003e\n2021 Polaris Ranger XP 1000 Northstar Trail Boss\u003cbr\u003e\n2021 Polaris Ranger XP 1000 Northstar Ultimate\u003cbr\u003e\n2021 Polaris Ranger XP 1000 Premium\u003cbr\u003e\n2021 Polaris Ranger XP 1000 Texas Edition\u003cbr\u003e\n2021 Polaris Ranger XP 1000 Trail Boss\u003cbr\u003e\n2021 Polaris RZR 1000 RS1\u003cbr\u003e\n2021 Polaris RZR 1000 Trail S Premium\u003cbr\u003e\n2021 Polaris RZR 1000 Trail S Ultimate\u003cbr\u003e\n2021 Polaris RZR 900 Trail Premium EPS\u003cbr\u003e\n2021 Polaris RZR 900 Trail S Sport\u003cbr\u003e\n2021 Polaris RZR 900 Trail Sport\u003cbr\u003e\n2021 Polaris RZR 900 Trail Ultimate EPS\u003cbr\u003e\n2021 Polaris RZR XP 1000 High Lifter Edition EPS\u003cbr\u003e\n2021 Polaris RZR XP 1000 Premium\u003cbr\u003e\n2021 Polaris RZR XP 1000 Sport\u003cbr\u003e\n2021 Polaris RZR XP 1000 Trails \u0026amp; Rocks EPS\u003cbr\u003e\n2021 Polaris RZR XP 4 1000 High Lifter Edition EPS\u003cbr\u003e\n2021 Polaris RZR XP 4 1000 Premium\u003cbr\u003e\n2021 Polaris RZR XP 4 1000 Sport\u003cbr\u003e\n2022 Polaris General 4 1000 Deluxe Ride Command Edition\u003cbr\u003e\n2022 Polaris General 4 1000 Premium\u003cbr\u003e\n2022 Polaris General XP 1000 Deluxe\u003cbr\u003e\n2022 Polaris General XP 1000 Deluxe Ride Command Edition\u003cbr\u003e\n2022 Polaris General XP 1000 Trailhead Edition\u003cbr\u003e\n2022 Polaris General XP 1000 Troy Lee Designs Edition\u003cbr\u003e\n2022 Polaris General XP 4 1000 Deluxe\u003cbr\u003e\n2022 Polaris General XP 4 1000 Deluxe Ride Command Edition\u003cbr\u003e\n2022 Polaris General XP 4 1000 Premium\u003cbr\u003e\n2022 Polaris General XP 4 1000 Trailhead Edition\u003cbr\u003e\n2022 Polaris General XP 4 1000 Troy Lee Designs Edition\u003cbr\u003e\n2022 Polaris Ranger 1000\u003cbr\u003e\n2022 Polaris Ranger 1000 EPS\u003cbr\u003e\n2022 Polaris Ranger 1000 Premium\u003cbr\u003e\n2022 Polaris Ranger 1000 Premium + Winter Prep\u003cbr\u003e\n2022 Polaris Ranger Crew 1000\u003cbr\u003e\n2022 Polaris Ranger Crew 1000 Premium\u003cbr\u003e\n2022 Polaris Ranger Crew 1000 Premium + Winter Prep\u003cbr\u003e\n2022 Polaris Ranger Crew XP 1000 High Lifter Edition EPS\u003cbr\u003e\n2022 Polaris Ranger Crew XP 1000 Northstar Premium EPS\u003cbr\u003e\n2022 Polaris Ranger Crew XP 1000 Northstar Ultimate EPS\u003cbr\u003e\n2022 Polaris Ranger Crew XP 1000 Northstar Ultimate Ride Command EPS\u003cbr\u003e\n2022 Polaris Ranger Crew XP 1000 Premium EPS\u003cbr\u003e\n2022 Polaris Ranger Crew XP 1000 Texas Edition EPS\u003cbr\u003e\n2022 Polaris Ranger Crew XP 1000 Trail Boss EPS\u003cbr\u003e\n2022 Polaris Ranger XP 1000 High Lifter Edition EPS\u003cbr\u003e\n2022 Polaris Ranger XP 1000 Northstar Premium\u003cbr\u003e\n2022 Polaris Ranger XP 1000 Northstar Ultimate\u003cbr\u003e\n2022 Polaris Ranger XP 1000 Northstar Ultimate Ride Command\u003cbr\u003e\n2022 Polaris Ranger XP 1000 Premium\u003cbr\u003e\n2022 Polaris Ranger XP 1000 Trail Boss\u003cbr\u003e\n2022 Polaris RZR 1000 RS1\u003cbr\u003e\n2022 Polaris RZR 1000 Trail S Premium\u003cbr\u003e\n2022 Polaris RZR 1000 Trail S Ultimate\u003cbr\u003e\n2022 Polaris RZR 900 Trail Premium EPS\u003cbr\u003e\n2022 Polaris RZR 900 Trail S Sport\u003cbr\u003e\n2022 Polaris RZR 900 Trail Sport\u003cbr\u003e\n2022 Polaris RZR 900 Trail Ultimate EPS\u003cbr\u003e\n2022 Polaris RZR XP 1000 High Lifter Edition EPS\u003cbr\u003e\n2022 Polaris RZR XP 1000 Premium\u003cbr\u003e\n2022 Polaris RZR XP 1000 Sport\u003cbr\u003e\n2022 Polaris RZR XP 1000 Trails \u0026amp; Rocks EPS\u003cbr\u003e\n2022 Polaris RZR XP 4 1000 High Lifter Edition EPS\u003cbr\u003e\n2022 Polaris RZR XP 4 1000 Premium\u003cbr\u003e\n2022 Polaris RZR XP 4 1000 Sport\u003cbr\u003e\n2023 Polaris General XP 1000 Premium\u003cbr\u003e\n2023 Polaris General XP 1000 Sport\u003cbr\u003e\n2023 Polaris General XP 1000 Ultimate\u003cbr\u003e\n2023 Polaris Ranger 1000\u003cbr\u003e\n2023 Polaris Ranger 1000 EPS\u003cbr\u003e\n2023 Polaris Ranger 1000 Premium\u003cbr\u003e\n2023 Polaris Ranger Crew 1000\u003cbr\u003e\n2023 Polaris Ranger Crew 1000 EPS\u003cbr\u003e\n2023 Polaris Ranger Crew 1000 Premium\u003cbr\u003e\n2023 Polaris Ranger Crew XP 1000 Northstar Premium EPS\u003cbr\u003e\n2023 Polaris Ranger Crew XP 1000 Northstar Trail Boss EPS\u003cbr\u003e\n2023 Polaris Ranger Crew XP 1000 Northstar Ultimate EPS\u003cbr\u003e\n2023 Polaris Ranger Crew XP 1000 Northstar Ultimate Ride Command EPS\u003cbr\u003e\n2023 Polaris Ranger Crew XP 1000 Premium EPS\u003cbr\u003e\n2023 Polaris Ranger Crew XP 1000 Trail Boss EPS\u003cbr\u003e\n2023 Polaris Ranger XP 1000 Northstar Premium\u003cbr\u003e\n2023 Polaris Ranger XP 1000 Northstar Trail Boss\u003cbr\u003e\n2023 Polaris Ranger XP 1000 Northstar Ultimate\u003cbr\u003e\n2023 Polaris Ranger XP 1000 Northstar Ultimate Ride Command\u003cbr\u003e\n2023 Polaris Ranger XP 1000 Premium\u003cbr\u003e\n2023 Polaris RZR 1000 Trail S Ultimate\u003cbr\u003e\n2023 Polaris RZR 900 Trail Premium EPS\u003cbr\u003e\n2023 Polaris RZR 900 Trail S Sport\u003cbr\u003e\n2023 Polaris RZR 900 Trail Sport\u003cbr\u003e\n2023 Polaris RZR 900 Trail Ultimate EPS\u003cbr\u003e\n2023 Polaris RZR XP 1000 Premium\u003cbr\u003e\n2023 Polaris RZR XP 1000 Sport\u003cbr\u003e\n2023 Polaris RZR XP 1000 Ultimate\u003cbr\u003e\n2023 Polaris RZR XP 4 1000 Premium\u003cbr\u003e\n2023 Polaris RZR XP 4 1000 Sport\u003cbr\u003e\n2023 Polaris RZR XP 4 1000 Ultimate","brand":"CYLINDER WORKS","offers":[{"title":"Default Title","offer_id":67550968643819,"sku":"422-610033","price":160.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/8094-60d9fabb66a18.jpg?v=1790713640"},{"product_id":"cylinder-works-23001-g01-big-bore-top-end-cylinder-piston-and-gasket-kit-for-yamaha-yfz450-and-yz450f","title":"Cylinder Works 23001-G01 Big Bore Top-End Cylinder, Piston and Gasket Kit for Yamaha YFZ450 and YZ450F","description":"\u003cp\u003eThe Cylinder Works 23001-G01 Top-End Kit is a complete big-bore replacement assembly designed for select Yamaha performance applications. The kit includes a cylinder, piston kit, piston rings, and gaskets, providing the primary components needed to refresh the top end without sourcing each part separately. Its standard-style cylinder appearance maintains an OEM-like look while supporting dependable replacement performance.\u003c\/p\u003e\u003cp\u003eNickel silicon carbide plating helps promote long service life, durability, and consistent cylinder operation under demanding riding conditions. The included piston and ring set is matched to the cylinder, while the gaskets help support a proper seal during installation. No machine work is required, making this kit a practical option for rebuilding a compatible engine with commonly available tools and installation procedures.\u003c\/p\u003e\u003cp\u003eThis Cylinder Works kit fits the 2004–2009 and 2012–2013 Yamaha YFZ450, as well as the 2003–2004 Yamaha YZ450F. Confirm the model year and engine configuration before ordering to ensure proper fitment. Manufacturer part number: 23001-G01. Vendor part number: 23001-G01.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eComplete kit includes cylinder, piston kit, piston rings, and gaskets\u003c\/li\u003e\n\u003cli\u003eBig-bore replacement assembly for compatible Yamaha engines\u003c\/li\u003e\n\u003cli\u003eCylinder has an OEM-style appearance\u003c\/li\u003e\n\u003cli\u003eNickel silicon carbide plating supports long service life\u003c\/li\u003e\n\u003cli\u003eNo machine work required for installation\u003c\/li\u003e\n\u003cli\u003eFits 2004–2009 and 2012–2013 Yamaha YFZ450 models\u003c\/li\u003e\n\u003cli\u003eFits 2003–2004 Yamaha YZ450F models\u003c\/li\u003e\n\u003cli\u003eManufacturer part number: 23001-G01\u003c\/li\u003e\n\u003cli\u003eVendor part number: 23001-G01\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\n2003 Yamaha WR450F\u003cbr\u003e\n2003 Yamaha YZ450F\u003cbr\u003e\n2004 Yamaha WR450F\u003cbr\u003e\n2004 Yamaha YFZ450\u003cbr\u003e\n2004 Yamaha YZ450F\u003cbr\u003e\n2005 Yamaha WR450F\u003cbr\u003e\n2005 Yamaha YFZ450\u003cbr\u003e\n2005 Yamaha YZ450F\u003cbr\u003e\n2006 Yamaha WR450F\u003cbr\u003e\n2006 Yamaha YFZ450\u003cbr\u003e\n2007 Yamaha YFZ450\u003cbr\u003e\n2008 Yamaha YFZ450\u003cbr\u003e\n2009 Yamaha YFZ450\u003cbr\u003e\n2012 Yamaha YFZ450\u003cbr\u003e\n2013 Yamaha YFZ450","brand":"CYLINDER WORKS","offers":[{"title":"Default Title","offer_id":67550971986155,"sku":"422-230013","price":112.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/3ff0-5a5913a9dfa3d.jpg?v=1790713720"},{"product_id":"cylinder-works-21009-g01-top-end-gasket-kit-for-yamaha-yz250","title":"Cylinder Works 21009-G01 Top-End Gasket Kit for Yamaha YZ250","description":"\u003cp\u003eThe Cylinder Works 21009-G01 Top-End Gasket Kit is designed for a reliable standard-bore top-end rebuild on select Yamaha YZ250 two-stroke motorcycles. This kit includes the cylinder, piston kit, and required gaskets, providing a convenient replacement solution for restoring engine performance without sourcing components separately.\u003c\/p\u003e\u003cp\u003eDesigned to closely match the original equipment cylinder, the Cylinder Works replacement cylinder features a nickel silicon carbide plating for durability, wear resistance, and long service life. The standard-bore design supports a straightforward installation, and no machine work is required when used with compatible components. Replacement standard-bore cylinders, piston kits, and ring sets are also available for future service needs.\u003c\/p\u003e\u003cp\u003eFitment includes 1999–2008 Yamaha YZ250 models. Verify the motorcycle year, engine configuration, and existing top-end components before installation. The manufacturer part number is 21009-G01, and the vendor part number is 21009-G01.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eIncludes cylinder, piston kit, and gaskets\u003c\/li\u003e\n\u003cli\u003eStandard-bore replacement cylinder, piston, and ring set design\u003c\/li\u003e\n\u003cli\u003eCylinder appearance closely matches stock equipment\u003c\/li\u003e\n\u003cli\u003eNickel silicon carbide plating supports long service life\u003c\/li\u003e\n\u003cli\u003eNo machine work required for installation\u003c\/li\u003e\n\u003cli\u003eFits 1999–2008 Yamaha YZ250 models\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\n1999 Yamaha YZ250\u003cbr\u003e\n2000 Yamaha YZ250\u003cbr\u003e\n2001 Yamaha YZ250\u003cbr\u003e\n2002 Yamaha YZ250\u003cbr\u003e\n2003 Yamaha YZ250\u003cbr\u003e\n2004 Yamaha YZ250\u003cbr\u003e\n2005 Yamaha YZ250\u003cbr\u003e\n2006 Yamaha YZ250\u003cbr\u003e\n2007 Yamaha YZ250\u003cbr\u003e\n2008 Yamaha YZ250\u003cbr\u003e\n2009 Yamaha YZ250\u003cbr\u003e\n2010 Yamaha YZ250\u003cbr\u003e\n2011 Yamaha YZ250\u003cbr\u003e\n2012 Yamaha YZ250\u003cbr\u003e\n2013 Yamaha YZ250\u003cbr\u003e\n2014 Yamaha YZ250\u003cbr\u003e\n2015 Yamaha YZ250\u003cbr\u003e\n2016 Yamaha YZ250\u003cbr\u003e\n2017 Yamaha YZ250\u003cbr\u003e\n2018 Yamaha YZ250\u003cbr\u003e\n2019 Yamaha YZ250\u003cbr\u003e\n2020 Yamaha YZ250\u003cbr\u003e\n2021 Yamaha YZ250\u003cbr\u003e\n2022 Yamaha YZ250\u003cbr\u003e\n2023 Yamaha YZ250\u003cbr\u003e\n2024 Yamaha YZ250\u003cbr\u003e\n2025 Yamaha YZ250","brand":"CYLINDER WORKS","offers":[{"title":"Default Title","offer_id":67550973985003,"sku":"422-210093","price":113.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/dad1-61e082e48ddb4.jpg?v=1790713776"},{"product_id":"cylinder-works-top-end-gasket-kit-big-bore-105-mm-for-yamaha-700-models-part-number-21004-g01","title":"Cylinder Works Top-End Gasket Kit, Big Bore 105 mm for Yamaha 700 Models, Part Number 21004-G01","description":"\u003cp\u003eRestore reliable top-end performance with the Cylinder Works Top-End Gasket Kit, Big Bore 105 mm, designed for select Yamaha 700 applications. Manufacturer part number 21004-G01 and vendor part number 21004-G01 identify this kit for service and replacement needs. The kit includes the cylinder, piston kit, and required gaskets for a comprehensive top-end refresh.\u003c\/p\u003e\u003cp\u003eThe replacement cylinder features a stock-style appearance and nickel silicon carbide plating for extended service life and dependable durability. Its standard-bore replacement components are designed to provide a direct, practical solution without requiring machine work, helping simplify installation and reduce downtime during engine service.\u003c\/p\u003e\u003cp\u003eFitment includes the 2014–2016 Yamaha YXM700 Viking; 2013–2017 Yamaha YFM700 Raptor; and 2007–2008 Yamaha YFM700G Grizzly Fi 4WD with independent rear suspension (IRS). Always verify the vehicle year, model, engine configuration, and existing top-end specifications before installation to ensure proper fitment.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eIncludes cylinder, piston kit, and gaskets\u003c\/li\u003e\n\u003cli\u003eBig bore 105 mm replacement top-end configuration\u003c\/li\u003e\n\u003cli\u003eStock-style cylinder appearance\u003c\/li\u003e\n\u003cli\u003eNickel silicon carbide plated cylinder for long service life\u003c\/li\u003e\n\u003cli\u003eNo machine work needed for installation\u003c\/li\u003e\n\u003cli\u003eFits select Yamaha YXM700 Viking, YFM700 Raptor, and YFM700G Grizzly Fi 4WD IRS models\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\n2006 Yamaha YFM700R Raptor\u003cbr\u003e\n2007 Yamaha YFM700G Grizzly Fi 4WD [IRS]\u003cbr\u003e\n2007 Yamaha YFM700R Raptor\u003cbr\u003e\n2008 Yamaha YFM700F Grizzly Fi 4WD EPS [IRS]\u003cbr\u003e\n2008 Yamaha YFM700G Grizzly Fi 4WD [IRS]\u003cbr\u003e\n2008 Yamaha YFM700R Raptor\u003cbr\u003e\n2008 Yamaha YXR700F Rhino 700\u003cbr\u003e\n2009 Yamaha YFM700 Grizzly Hunter 4WD\u003cbr\u003e\n2009 Yamaha YFM700F Grizzly Fi 4WD EPS Hunter [IRS]\u003cbr\u003e\n2009 Yamaha YFM700F Grizzly Fi 4WD EPS [IRS]\u003cbr\u003e\n2009 Yamaha YFM700G Grizzly Fi 4WD [IRS]\u003cbr\u003e\n2009 Yamaha YFM700R Raptor\u003cbr\u003e\n2009 Yamaha YXR700F Rhino 700\u003cbr\u003e\n2010 Yamaha YFM700 Grizzly Hunter 4WD\u003cbr\u003e\n2010 Yamaha YFM700F Grizzly Fi 4WD EPS Hunter [IRS]\u003cbr\u003e\n2010 Yamaha YFM700F Grizzly Fi 4WD EPS [IRS]\u003cbr\u003e\n2010 Yamaha YFM700G Grizzly Fi 4WD [IRS]\u003cbr\u003e\n2010 Yamaha YFM700R Raptor\u003cbr\u003e\n2010 Yamaha YXR700F Rhino 700\u003cbr\u003e\n2011 Yamaha YFM700 Grizzly Hunter 4WD\u003cbr\u003e\n2011 Yamaha YFM700F Grizzly Fi 4WD EPS Hunter [IRS]\u003cbr\u003e\n2011 Yamaha YFM700F Grizzly Fi 4WD EPS [IRS]\u003cbr\u003e\n2011 Yamaha YFM700G Grizzly Fi 4WD [IRS]\u003cbr\u003e\n2011 Yamaha YFM700R Raptor\u003cbr\u003e\n2011 Yamaha YXR700F Rhino 700\u003cbr\u003e\n2012 Yamaha YFM700 Grizzly Hunter 4WD\u003cbr\u003e\n2012 Yamaha YFM700F Grizzly Fi 4WD EPS Hunter [IRS]\u003cbr\u003e\n2012 Yamaha YFM700F Grizzly Fi 4WD EPS [IRS]\u003cbr\u003e\n2012 Yamaha YFM700G Grizzly Fi 4WD [IRS]\u003cbr\u003e\n2012 Yamaha YFM700R Raptor\u003cbr\u003e\n2012 Yamaha YXR700F Rhino 700\u003cbr\u003e\n2013 Yamaha YFM700 Grizzly Hunter 4WD\u003cbr\u003e\n2013 Yamaha YFM700 Raptor\u003cbr\u003e\n2013 Yamaha YFM700F Grizzly Fi 4WD EPS Hunter [IRS]\u003cbr\u003e\n2013 Yamaha YFM700F Grizzly Fi 4WD EPS [IRS]\u003cbr\u003e\n2013 Yamaha YFM700G Grizzly Fi 4WD [IRS]\u003cbr\u003e\n2013 Yamaha YFM700R Raptor\u003cbr\u003e\n2013 Yamaha YXR700F Rhino 700\u003cbr\u003e\n2014 Yamaha YFM700 Raptor\u003cbr\u003e\n2014 Yamaha YFM700G Grizzly Fi 4WD [IRS]\u003cbr\u003e\n2014 Yamaha YFM700R Raptor\u003cbr\u003e\n2014 Yamaha YXM700 Viking\u003cbr\u003e\n2015 Yamaha YFM700 Raptor\u003cbr\u003e\n2015 Yamaha YFM700G Grizzly Fi 4WD [IRS]\u003cbr\u003e\n2015 Yamaha YFM700R Raptor\u003cbr\u003e\n2015 Yamaha YFM700RSE Raptor SE\u003cbr\u003e\n2015 Yamaha YXM700 Viking\u003cbr\u003e\n2016 Yamaha YFM700 Raptor\u003cbr\u003e\n2016 Yamaha YFM700R Raptor\u003cbr\u003e\n2016 Yamaha YFM700RSE Raptor SE\u003cbr\u003e\n2016 Yamaha YXM700 Viking\u003cbr\u003e\n2017 Yamaha YFM700 Raptor\u003cbr\u003e\n2017 Yamaha YFM700R Raptor\u003cbr\u003e\n2017 Yamaha YFM700RSE Raptor SE\u003cbr\u003e\n2017 Yamaha YXM700 Viking\u003cbr\u003e\n2018 Yamaha YFM700 Raptor\u003cbr\u003e\n2018 Yamaha YFM700R Raptor\u003cbr\u003e\n2018 Yamaha YFM700RSE Raptor SE\u003cbr\u003e\n2019 Yamaha YFM700R Raptor\u003cbr\u003e\n2019 Yamaha YFM700RSE Raptor SE\u003cbr\u003e\n2020 Yamaha YFM700R Raptor\u003cbr\u003e\n2020 Yamaha YFM700RSE Raptor SE\u003cbr\u003e\n2021 Yamaha YFM700R Raptor\u003cbr\u003e\n2021 Yamaha YFM700RSE Raptor SE\u003cbr\u003e\n2022 Yamaha YFM700R Raptor\u003cbr\u003e\n2022 Yamaha YFM700RSE Raptor SE\u003cbr\u003e\n2023 Yamaha YFM700R Raptor\u003cbr\u003e\n2023 Yamaha YFM700RSE Raptor SE","brand":"CYLINDER WORKS","offers":[{"title":"Default Title","offer_id":67550976082155,"sku":"422-210043","price":125.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/f4e7-5a59128bcb330.jpg?v=1790713831"}],"url":"https:\/\/ctracingservices.com\/collections\/cylinder-works.oembed?page=7","provider":"Cascade Tire \u0026 Racing Services","version":"1.0","type":"link"}