{"product_id":"namura-standard-bore-size-a-top-end-kit-for-ktm-250-sx-mxc-exc-66-4mm-see-years","title":"Namura Standard Bore Size A Top End Kit for KTM 250 SX MXC EXC 66.4mm SEE YEARS","description":"\u003ch2\u003eNamura Standard Bore Size A Top End Kit for KTM\u003c\/h2\u003e\u003cp\u003eThis Namura standard bore size A top end kit is a complete replacement assembly for KTM 250 SX, MXC, and EXC models, providing a reliable piston, rings, wrist pin, and gasket set to restore performance (OEM cross-reference numbers not cited in title).\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThis Namura standard bore size A top end kit delivers a complete piston and gasket set for KTM 250 SX, MXC, and EXC models with a 66.4mm bore, restoring compression and power. The top end kit includes all necessary components for a direct replacement rebuild, ensuring a dependable fix for off-road and motocross use.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eStandard bore size A piston at 66.4mm for precise fitment\u003c\/li\u003e\n\u003cli\u003eIncludes piston, rings, wrist pin, and circlips for a complete top end\u003c\/li\u003e\n\u003cli\u003eFull gasket set included for a hassle-free rebuild\u003c\/li\u003e\n\u003cli\u003eConstructed from high-strength aluminum alloy for durability\u003c\/li\u003e\n\u003cli\u003eDesigned to meet OEM specifications for reliable operation\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\u003eRestores top-end performance in worn KTM 250 two-stroke engines\u003c\/li\u003e\n\u003cli\u003eIdeal for motocross racing and trail riding applications\u003c\/li\u003e\n\u003cli\u003eSuitable for engine rebuilds during routine maintenance cycles\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eSpecs At A Glance\u003c\/h4\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number(s)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSEE YEARS (consult listing for specific part)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBore Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e66.4mm (Standard Size A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eKit Includes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePiston, Rings, Wrist Pin, Circlips, Gaskets\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Models\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 a gasket set? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, this Namura top end kit includes a full gasket set for the cylinder and head, allowing for a complete top-end rebuild.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e What is the bore size of this piston? \u003cstrong\u003eA:\u003c\/strong\u003e The piston is a standard bore size A at 66.4mm, which is the factory specification for KTM 250 models.\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":44949743665238,"sku":"SZ1F13827","price":186.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/1_af39ba4b-554b-40c3-93d6-29bdb3a45355.jpg?v=1781397707","url":"https:\/\/www.solidspare.com\/products\/namura-standard-bore-size-a-top-end-kit-for-ktm-250-sx-mxc-exc-66-4mm-see-years","provider":"Solid Spare","version":"1.0","type":"link"}