{"product_id":"namura-standard-bore-size-b-top-end-kit-for-ktm-250-sx-mxc-exc-66-4mm-see-years","title":"Namura Standard Bore Size B Top End Kit for KTM 250 SX MXC EXC 66.4mm SEE YEARS","description":"\u003ch2\u003eStandard Bore Size B Top End Kit for KTM\u003c\/h2\u003e\u003cp\u003eThis top end kit provides a complete cylinder and piston assembly for KTM 250 SX, MXC, and EXC models, featuring a 66.4mm standard bore size for restoring engine compression and performance.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThis top end kit is designed for KTM 250 two-stroke engines, delivering a direct replacement top end assembly with a 66.4mm standard bore. It includes the piston, rings, pin, and clips needed for a full top end rebuild, making it ideal for restoring power and reliability to your KTM 250 SX, MXC, or EXC.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eStandard bore size of 66.4mm matches OEM specifications\u003c\/li\u003e\n\u003cli\u003eHigh-quality piston and ring set for consistent compression\u003c\/li\u003e\n\u003cli\u003ePrecision-machined cylinder for accurate fitment\u003c\/li\u003e\n\u003cli\u003eIncludes all necessary hardware for installation\u003c\/li\u003e\n\u003cli\u003eDesigned for long-lasting durability in off-road conditions\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003efor KTM 250 SX\u003c\/li\u003e\n\u003cli\u003efor KTM 250 MXC\u003c\/li\u003e\n\u003cli\u003efor KTM 250 EXC\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eRebuilding top end on a KTM 250 two-stroke dirt bike\u003c\/li\u003e\n\u003cli\u003eRestoring lost compression and performance\u003c\/li\u003e\n\u003cli\u003eReplacing worn piston and cylinder after high hours\u003c\/li\u003e\n\u003cli\u003ePreparing engine for competition or trail 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\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eStandard Bore B\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eKTM 250 SX \/ MXC \/ EXC\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 Does this kit include the cylinder? \u003cstrong\u003eA:\u003c\/strong\u003e This top end kit includes the cylinder, piston, rings, pin, and clips – everything needed for a complete top end rebuild.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e What years does this fit? \u003cstrong\u003eA:\u003c\/strong\u003e This kit is compatible with specific model years of the KTM 250 SX, MXC, and EXC; always confirm your engine's bore size and serial number before ordering.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eSlight variation in finish or dimensions may occur between production runs, and serial number affects compatibility, so confirm compatibility before ordering.\u003c\/em\u003e\u003c\/p\u003e","brand":"Solid Spare","offers":[{"title":"Default Title","offer_id":44949743468630,"sku":"SZ1F13821","price":186.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/1_372b6271-9810-4246-b09f-1ccc32b17e52.jpg?v=1781397699","url":"https:\/\/www.solidspare.com\/products\/namura-standard-bore-size-b-top-end-kit-for-ktm-250-sx-mxc-exc-66-4mm-see-years","provider":"Solid Spare","version":"1.0","type":"link"}