{"product_id":"namura-nx-70020k-top-end-kit-for-ktm-50-sx-and-husqvarna-tc-50-standard-bore","title":"Namura NX-70020K Top End Kit for KTM 50 SX and Husqvarna TC 50, Standard Bore","description":"\u003cp\u003eThe Namura NX-70020K Top End Kit is a complete standard-bore replacement kit designed for select KTM 50 SX and Husqvarna TC 50 motorcycles with Nikasil-plated cylinders. The kit includes a piston, piston rings, wrist pin, retaining clips, top-end bearing, and gasket kit for a comprehensive top-end service. It is engineered to support dependable fitment, consistent performance, and long-term durability in demanding off-road applications.\u003c\/p\u003e\u003cp\u003eNamura uses a hypereutectic casting process that increases silicon content to help reduce expansion, improve wear resistance, and withstand elevated cylinder temperatures. The piston features MOS2, or Teflon\/molybdenum, coated skirts applied through a rolled-on process for a strong, durable bond. This coating helps improve heat transfer, reduce friction, and minimize the risk of cold seizures during operation. Machined smooth heads help reflect combustion heat and reduce carbon buildup, while anodized domes improve heat resistance and durability.\u003c\/p\u003e\u003cp\u003eThis Namura top-end kit fits 2009 through 2017 KTM 50 SX models, along with the 2017 Husqvarna TC 50. Verify the motorcycle year, model, cylinder configuration, and required standard-bore application before installation. Manufacturer part number NX-70020K and vendor part number 185-7020 identify this replacement kit.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eComplete top-end kit includes piston, rings, wrist pin, retaining clips, top-end bearing, and gasket kit\u003c\/li\u003e\n\u003cli\u003eMOS2 Teflon\/molybdenum coated skirts help reduce friction, improve heat transfer, and minimize cold-seizure risk\u003c\/li\u003e\n\u003cli\u003eMachined smooth piston head helps reflect combustion heat and reduce carbon buildup\u003c\/li\u003e\n\u003cli\u003eAnodized piston dome improves heat resistance and durability\u003c\/li\u003e\n\u003cli\u003eHypereutectic casting process provides reduced expansion, increased wear resistance, and improved high-temperature performance\u003c\/li\u003e\n\u003cli\u003eStandard-bore replacement for Nikasil-plated cylinders\u003c\/li\u003e\n\u003cli\u003eFits 2009–2017 KTM 50 SX and 2017 Husqvarna TC 50 models\u003c\/li\u003e\n\u003cli\u003eBrand: Namura\u003c\/li\u003e\n\u003cli\u003eManufacturer part number: NX-70020K\u003c\/li\u003e\n\u003cli\u003eVendor part number: 185-7020\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\n2009 KTM 50 SX\u003cbr\u003e\n2010 KTM 50 SX\u003cbr\u003e\n2011 KTM 50 SX\u003cbr\u003e\n2012 KTM 50 SX\u003cbr\u003e\n2013 KTM 50 SX\u003cbr\u003e\n2014 KTM 50 SX\u003cbr\u003e\n2015 KTM 50 SX\u003cbr\u003e\n2016 KTM 50 SX\u003cbr\u003e\n2017 Husqvarna TC 50\u003cbr\u003e\n2017 KTM 50 SX\u003cbr\u003e\n2018 Husqvarna TC 50\u003cbr\u003e\n2018 KTM 50 SX\u003cbr\u003e\n2019 Husqvarna TC 50\u003cbr\u003e\n2019 KTM 50 SX\u003cbr\u003e\n2020 Husqvarna TC 50\u003cbr\u003e\n2020 KTM 50 SX\u003cbr\u003e\n2021 Gas-Gas MC 50\u003cbr\u003e\n2021 Husqvarna TC 50\u003cbr\u003e\n2021 KTM 50 SX","brand":"NAMURA","offers":[{"title":"Default Title","offer_id":67559539081451,"sku":"185-7020","price":68.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/6580-5e961fb10a2af.jpg?v=1790772542","url":"https:\/\/ctracingservices.com\/products\/namura-nx-70020k-top-end-kit-for-ktm-50-sx-and-husqvarna-tc-50-standard-bore","provider":"Cascade Tire \u0026 Racing Services","version":"1.0","type":"link"}