{"product_id":"namura-size-a-67-44mm-piston-kit-for-ktm-250-sx-mxc-exc-standard-bore-67-5mm","title":"Namura Size A (67.44mm) Piston Kit for KTM 250 SX MXC \u0026 EXC Standard Bore 67.5mm","description":"\u003ch2\u003eSize A (67.44mm) Piston Kit for KTM\u003c\/h2\u003e\u003cp\u003eThis piston kit for KTM 250 SX, MXC, and EXC models uses a 67.44mm size A piston designed for a standard bore of 67.5mm, providing a drop-in replacement for restoring engine performance.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThe Size A (67.44mm) piston kit for KTM is a complete assembly including a cast piston, rings, wrist pin, and circlips intended for KTM 250cc two-stroke engines. This kit for KTM offers a precise fit for the standard 67.5mm bore and is commonly used in SX, MXC, and EXC models for reliable rebuilding.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003ePrecision-machined piston with size A dimensions for proper cylinder clearance\u003c\/li\u003e\n\u003cli\u003eIncludes a high-quality ring set for optimal compression and oil control\u003c\/li\u003e\n\u003cli\u003eHeat-treated wrist pin reduces wear and improves longevity\u003c\/li\u003e\n\u003cli\u003eIncludes circlips for secure pin retention\u003c\/li\u003e\n\u003cli\u003eDesigned to match KTM stock specifications for seamless installation\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\u003ePiston replacement during top end rebuilds on KTM 250 two-stroke engines\u003c\/li\u003e\n\u003cli\u003eIdeal for motocross, enduro, and trail riding applications\u003c\/li\u003e\n\u003cli\u003eUsed when restoring lost compression or after piston seizure\u003c\/li\u003e\n\u003cli\u003eCommonly chosen for performance rebuilds on KTM SX and EXC models\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eSpecs At A Glance\u003c\/h4\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePiston Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSize A (67.44mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStandard Bore\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e67.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number(s)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNamura Size A\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 Can this piston be used with a Nikasil-coated cylinder? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, this piston kit for KTM is compatible with standard Nikasil-plated cylinders as long as the bore is within specification. Always check cylinder condition before installation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Does the kit include the piston pin bearing? \u003cstrong\u003eA:\u003c\/strong\u003e No, the piston pin bearing is not included; you will need to reuse or replace it separately. The kit includes the wrist pin, circlips, and rings.\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":44890470547542,"sku":"SZ1F11399","price":129.79,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/1_416685f7-dfdb-4940-88e9-10e0887c37f1.jpg?v=1781140025","url":"https:\/\/www.solidspare.com\/products\/namura-size-a-67-44mm-piston-kit-for-ktm-250-sx-mxc-exc-standard-bore-67-5mm","provider":"Solid Spare","version":"1.0","type":"link"}