{"product_id":"namura-standard-bore-piston-kit-size-b-39-47mm-for-ktm-50-sx-2009-2023-39-5mm","title":"Namura Standard Bore Piston Kit Size B (39.47mm) for KTM 50 SX 2009-2023 39.5mm","description":"\u003ch2\u003ePiston Kit for KTM\u003c\/h2\u003e\u003cp\u003eThis Namura standard bore piston kit Size B (39.47mm) for KTM 50 SX (2009-2023) replaces the original piston for engine repair and maintenance.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThe Namura piston kit Size B (39.47mm) is designed for KTM 50 SX mini dirt bikes from 2009 to 2023, providing a standard bore replacement at 39.5mm nominal. It includes rings and pin for a complete top-end rebuild.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSize B specification for standard bore\u003c\/li\u003e\n\u003cli\u003ePrecision-machined aluminum alloy\u003c\/li\u003e\n\u003cli\u003eIncludes piston rings, wrist pin, and clips\u003c\/li\u003e\n\u003cli\u003eLightweight for high-revving engines\u003c\/li\u003e\n\u003cli\u003eDirect fit for KTM 50 SX\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\u003cli\u003efor KTM 50 SX (2009-2023)\u003c\/li\u003e\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eMini dirt bike racing\u003c\/li\u003e\n\u003cli\u003eYouth motocross\u003c\/li\u003e\n\u003cli\u003eEngine rebuild after wear\u003c\/li\u003e\n\u003cli\u003eTrail riding for young riders\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\u003e39.47mm (Size B, 39.5mm nominal)\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 Piston Kit\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 2009-2023\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 What is the difference between Size B and Size C? \u003cstrong\u003eA:\u003c\/strong\u003e Size B is 39.47mm and Size C is 39.48mm; they are both standard bore but slight manufacturing variations.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Does this kit come with a gasket set? \u003cstrong\u003eA:\u003c\/strong\u003e No, only the piston, rings, pin, and clips are included; gaskets must be purchased separately.\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":44888423727190,"sku":"SZ1F09133","price":83.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/1_d144cc59-ddf3-425d-b5ff-9f09efc8fa61.jpg?v=1781093798","url":"https:\/\/www.solidspare.com\/products\/namura-standard-bore-piston-kit-size-b-39-47mm-for-ktm-50-sx-2009-2023-39-5mm","provider":"Solid Spare","version":"1.0","type":"link"}