{"product_id":"cylinder-works-20001-k02-standard-bore-12-5-1-high-compression-cylinder-kit-for-yamaha-yz450f-and-wr450f","title":"Cylinder Works 20001-K02 Standard Bore 12.5:1 High-Compression Cylinder Kit for Yamaha YZ450F and WR450F","description":"\u003cp\u003eThe Cylinder Works 20001-K02 Standard Bore Cylinder Kit is designed for select Yamaha YZ450F and WR450F motorcycles. This complete high-compression top-end kit includes a standard-bore nickel silicon carbide plated cylinder, matched Vertex piston kit, and the required gaskets for a reliable engine rebuild. With a 12.5:1 compression ratio, the kit is engineered to support strong performance while maintaining the stock-style appearance of the original cylinder.\u003c\/p\u003e\u003cp\u003eEach component is carefully matched to promote longevity, consistent performance, and reduced engine noise. The plated cylinder provides extended service life and dependable wear resistance, while the included piston and ring set are designed to work together for proper fit and operation. The standard-bore configuration is intended as a direct replacement application, and no machine work is needed for installation when used with the specified fitment.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Fits 2003–2005 Yamaha YZ450F, 2003–2005 Yamaha WR450F, and 2006 Yamaha WR450F models. The Cylinder Works manufacturer part number is 20001-K02. The top-end gasket kit does not include valve stem seals. 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 standard-bore high-compression cylinder kit\u003c\/li\u003e\n\u003cli\u003eIncludes cylinder, matched Vertex piston kit, and gaskets\u003c\/li\u003e\n\u003cli\u003e12.5:1 compression ratio supports enhanced engine performance\u003c\/li\u003e\n\u003cli\u003eNickel silicon carbide plated cylinder promotes extended service life\u003c\/li\u003e\n\u003cli\u003eStock-style cylinder appearance for an original-equipment look\u003c\/li\u003e\n\u003cli\u003eMatched components help promote longevity, performance, and reduced engine noise\u003c\/li\u003e\n\u003cli\u003eNo machine work needed for specified applications\u003c\/li\u003e\n\u003cli\u003eDirect standard-bore replacement cylinder configuration\u003c\/li\u003e\n\u003cli\u003eTop-end gasket kit does not include valve stem seals\u003c\/li\u003e\n\u003cli\u003eFits 2003–2005 Yamaha YZ450F, 2003–2005 Yamaha WR450F, and 2006 Yamaha WR450F\u003c\/li\u003e\n\u003cli\u003eBrand: Cylinder Works\u003c\/li\u003e\n\u003cli\u003eManufacturer part number: 20001-K02\u003c\/li\u003e\n\u003cli\u003eVendor part number: 422-20001K2\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 YZ450F\u003cbr\u003e\n2005 Yamaha WR450F\u003cbr\u003e\n2005 Yamaha YZ450F\u003cbr\u003e\n2006 Yamaha WR450F","brand":"CYLINDER WORKS","offers":[{"title":"Default Title","offer_id":67551712706795,"sku":"422-20001K2","price":695.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/705d-5a58ed1b930f3.jpg?v=1790722281","url":"https:\/\/ctracingservices.com\/products\/cylinder-works-20001-k02-standard-bore-12-5-1-high-compression-cylinder-kit-for-yamaha-yz450f-and-wr450f","provider":"Cascade Tire \u0026 Racing Services","version":"1.0","type":"link"}