{"product_id":"namura-size-a-piston-kit-for-ktm-50-sx-pro-jr-sr-mini-junior-std-bore-39-50mm","title":"Namura Size A Piston Kit for KTM 50 SX Pro Jr Sr Mini Junior STD Bore 39.50mm","description":"\u003ch2\u003eNamura Size A Piston Kit (STD Bore 39.50mm) for KTM\u003c\/h2\u003e\u003cp\u003eThis Namura Size A piston kit with STD bore 39.50mm is designed for KTM 50 SX Pro Jr Sr Mini Junior models, replacing worn pistons.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThis Namura Size A piston kit is a direct replacement for KTM 50 SX Pro, Jr, Sr, Mini, and Junior models, featuring a standard bore of 39.50mm. It restores compression and performance in two-stroke engines, making it a popular choice for rebuilds.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003ePrecision-machined from high-quality aluminum alloy\u003c\/li\u003e\n\u003cli\u003eIncludes rings, wrist pin, and circlips\u003c\/li\u003e\n\u003cli\u003eSTD bore size 39.50mm for original spec rebuilds\u003c\/li\u003e\n\u003cli\u003eBalanced weight for reduced vibration\u003c\/li\u003e\n\u003cli\u003eDesigned to meet OEM tolerances\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003efor KTM 50 SX Pro\u003c\/li\u003e\n\u003cli\u003efor KTM 50 SX Jr\u003c\/li\u003e\n\u003cli\u003efor KTM 50 SX Sr\u003c\/li\u003e\n\u003cli\u003efor KTM 50 SX Mini\u003c\/li\u003e\n\u003cli\u003efor KTM 50 SX Junior\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eDuring top-end engine rebuilds\u003c\/li\u003e\n\u003cli\u003eFor competition and recreational riding\u003c\/li\u003e\n\u003cli\u003eWhen restoring older mini dirt bikes\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eSpecs At A Glance\u003c\/h4\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePiston Kit (Size A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBore\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e39.50mm (STD)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eKTM 50 SX Pro Jr Sr Mini Junior\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 piston rings? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, the kit comes with rings, wrist pin, and circlips for a complete installation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Is this piston suitable for high-RPM use? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, Namura pistons are designed to handle the RPM range of these small two-stroke engines.\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":44888499486806,"sku":"SZ1F09568","price":87.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/1_eb965415-d42b-4131-afda-91bdc37808df.jpg?v=1781094424","url":"https:\/\/www.solidspare.com\/products\/namura-size-a-piston-kit-for-ktm-50-sx-pro-jr-sr-mini-junior-std-bore-39-50mm","provider":"Solid Spare","version":"1.0","type":"link"}