{"product_id":"namura-size-b-standard-bore-top-end-repair-kit-for-ktm-85-sx-2018-2026-47mm","title":"Namura Size B Standard Bore Top End Repair Kit for KTM 85 SX 2018-2026 47mm","description":"\u003ch2\u003eTop End Repair Kit for KTM 85 SX 2018-2026 47mm\u003c\/h2\u003e\u003cp\u003eThis Namura Size B standard bore top end repair kit is a direct replacement for KTM 85 SX models from 2018 to 2026, featuring a 47mm bore size to restore compression and performance.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThe Namura Size B standard bore top end repair kit is a complete top end rebuild solution designed for KTM 85 SX motorcycles. It includes all necessary components to refresh the cylinder and piston assembly, ensuring reliable power delivery for competitive riding. This kit is specifically engineered for KTM 85 SX 2018-2026 models with 47mm bore.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eIncludes piston, rings, wrist pin, and circlips for full top end rebuild\u003c\/li\u003e\n\u003cli\u003eSize B standard bore maintains factory 47mm cylinder dimensions\u003c\/li\u003e\n\u003cli\u003ePrecision-machined piston skirt reduces friction and improves throttle response\u003c\/li\u003e\n\u003cli\u003eHigh-strength aluminum alloy withstands extreme temperatures and loads\u003c\/li\u003e\n\u003cli\u003eOEM-spec ring tension ensures consistent compression and oil control\u003c\/li\u003e\n\u003cli\u003eNamura quality control meets or exceeds original equipment standards\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003efor KTM 85 SX 2018\u003c\/li\u003e\n\u003cli\u003efor KTM 85 SX 2019\u003c\/li\u003e\n\u003cli\u003efor KTM 85 SX 2020\u003c\/li\u003e\n\u003cli\u003efor KTM 85 SX 2021\u003c\/li\u003e\n\u003cli\u003efor KTM 85 SX 2022\u003c\/li\u003e\n\u003cli\u003efor KTM 85 SX 2023\u003c\/li\u003e\n\u003cli\u003efor KTM 85 SX 2024\u003c\/li\u003e\n\u003cli\u003efor KTM 85 SX 2025\u003c\/li\u003e\n\u003cli\u003efor KTM 85 SX 2026\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eMotocross track riding and racing\u003c\/li\u003e\n\u003cli\u003eEnduro and off-road competition\u003c\/li\u003e\n\u003cli\u003eTop end rebuild after 20-30 hours of hard use\u003c\/li\u003e\n\u003cli\u003eRestoring lost power and compression in high-mileage engines\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\u003eNamura Size B Top End Kit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBore Diameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e47mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePiston Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSize B (standard bore)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAluminum alloy piston with steel rings\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eKTM 85 SX 2018-2026\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 Is this kit compatible with KTM 85 SX models from earlier years? \u003cstrong\u003eA:\u003c\/strong\u003e This kit is specifically designed for 2018-2026 models with a 47mm bore; earlier models may use a different piston size or configuration, so always verify your model year and bore dimensions.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Do I need any additional parts for installation? \u003cstrong\u003eA:\u003c\/strong\u003e The kit includes piston, rings, wrist pin, and circlips, but you may need new gaskets, a cylinder honing service, and fresh oil for a complete top end rebuild.\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":44949758607446,"sku":"SZ1F14197","price":197.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/1_f588716d-7e9f-4d96-ac3f-f534360d0e07.jpg?v=1781398159","url":"https:\/\/www.solidspare.com\/products\/namura-size-b-standard-bore-top-end-repair-kit-for-ktm-85-sx-2018-2026-47mm","provider":"Solid Spare","version":"1.0","type":"link"}