{"product_id":"namura-standard-bore-size-c-top-end-kit-for-ktm-250-2-stroke-2017-2021-66-4mm","title":"Namura Standard Bore Size C Top End Kit for KTM 250 2-Stroke 2017-2021 66.4mm","description":"\u003ch2\u003eNamura Standard Bore Size C Top End Kit for KTM\u003c\/h2\u003e\u003cp\u003eThis Namura Standard Bore Size C Top End Kit provides a complete top end rebuild solution for the KTM 250 2-Stroke engine, featuring a 66.4mm piston and all necessary hardware. Designed for the 2017-2021 model years, this top end kit restores cylinder performance and compression for reliable off-road riding.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThis Namura Standard Bore Size C Top End Kit is a precision-engineered rebuild set for the KTM 250 2-Stroke (2017-2021), including a size C piston, rings, wrist pin, circlips, and gasket kit. With a 66.4mm standard bore diameter, this top end kit ensures a direct fit and smooth operation for your dirt bike. Ideal for motocross, enduro, and trail riding, this top end kit brings your KTM back to peak performance.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eIncludes a forged or cast aluminum piston with advanced ring groove design\u003c\/li\u003e\n\u003cli\u003eFeatures precisely gapped rings for optimal compression and blow-by control\u003c\/li\u003e\n\u003cli\u003eSupplied with a hardened wrist pin and high-quality circlips\u003c\/li\u003e\n\u003cli\u003eGasket set includes cylinder base, head, and exhaust port gaskets\u003c\/li\u003e\n\u003cli\u003ePiston size C offers exact fit for standard 66.4mm bore\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\u003cli\u003efor KTM 250 2-Stroke (2017-2021)\u003c\/li\u003e\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eMotocross racing on tracks\u003c\/li\u003e\n\u003cli\u003eEnduro and cross-country trail riding\u003c\/li\u003e\n\u003cli\u003eRecreational trail riding on single-track\u003c\/li\u003e\n\u003cli\u003eCompetition and practice riding\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eSpecs At A Glance\u003c\/h4\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBore Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e66.4mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eKTM 250 2-Stroke (2017-2021)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eKit Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTop End Kit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBore Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eStandard Bore\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePiston Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSize C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch4\u003eGood To Know\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Is this kit suitable for a 2-stroke rebuild? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, it includes everything needed for a top end rebuild on a 2-stroke KTM 250 engine, including piston, rings, pin, circlips, and gaskets.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Do I need any additional parts for installation? \u003cstrong\u003eA:\u003c\/strong\u003e You will need standard tools and a torque wrench; cylinder honing may be required if bore wear is present.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eSlight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.\u003c\/em\u003e\u003c\/p\u003e","brand":"Solid Spare","offers":[{"title":"Default Title","offer_id":44949774565462,"sku":"SZ1F14676","price":230.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/1_18d6c758-b1cf-41bb-bbf8-bcfc33ba5c32.jpg?v=1781398738","url":"https:\/\/www.solidspare.com\/products\/namura-standard-bore-size-c-top-end-kit-for-ktm-250-2-stroke-2017-2021-66-4mm","provider":"Solid Spare","version":"1.0","type":"link"}