{"product_id":"s-s-cycle-conversion-kits-1986-2021-harley-davidson-sportster-models-3","title":"S\u0026S Cycle Conversion Kits — 1986-2021 Harley-Davidson Sportster Models","description":"\u003cp\u003eS\u0026amp;S Cycle 1250cc conversion kit for 1986–2021 Harley Sportster, upgrading stock 883cc and 1200cc displacement without requiring cylinder machining or piston rebalancing. Includes forged pistons, S\u0026amp;S cylinders, gasket set, and assembly lube.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eForged flat-top pistons with coated skirts\u003c\/li\u003e\n  \u003cli\u003eS\u0026amp;S 3-9\/16\" bore cylinders\u003c\/li\u003e\n  \u003cli\u003eComplete gasket set included (head, base, exhaust)\u003c\/li\u003e\n  \u003cli\u003eNo machining or rebalancing required\u003c\/li\u003e\n  \u003cli\u003eAssembly lube and instructions included\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e S\u0026amp;S Cycle\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part #:\u003c\/strong\u003e 910-0691\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDisplacement Upgrade:\u003c\/strong\u003e 883cc or 1200cc to 1250cc\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePiston Bore:\u003c\/strong\u003e 3-9\/16 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 21.5 lb\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Engine Components \/ Piston Sets - Powersports\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFitment\u003c\/h2\u003e\n\u003cp\u003eFits 1986–2021 Harley-Davidson Sportster models. 883cc cylinder heads are not compatible with this kit and cannot be reused.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWill this work with my 883 or 1200 Sportster?\u003c\/h3\u003e\n\u003cp\u003eYes — this kit converts either displacement to 1250cc. However, 883 cylinder heads cannot be used and must be replaced.\u003c\/p\u003e\n\u003ch3\u003eDo I need to machine or rebalance the cylinders and pistons?\u003c\/h3\u003e\n\u003cp\u003eNo — S\u0026amp;S designed this kit for bolt-on installation without machine work or rebalancing.\u003c\/p\u003e\n\u003ch3\u003eWhat's included in the box?\u003c\/h3\u003e\n\u003cp\u003eForged pistons, S\u0026amp;S cylinders, head gasket, base gasket, exhaust gaskets, assembly lube, and installation instructions.\u003c\/p\u003e\n\u003ch3\u003eWill this kit alone give me the best performance?\u003c\/h3\u003e\n\u003cp\u003eThe kit will increase displacement, but S\u0026amp;S recommends pairing it with CNC head porting, performance cams, exhaust, and intake upgrades for optimal results.\u003c\/p\u003e","brand":"S\u0026S Cycle","offers":[{"title":"Default Title","offer_id":53040428384367,"sku":"T14-619449","price":1008.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0608\/6734\/6543\/files\/output_3a6096d1-3de0-4bd1-b990-95adaa8413b7.png?v=1779566563","url":"https:\/\/vtwinbikers.com\/products\/s-s-cycle-conversion-kits-1986-2021-harley-davidson-sportster-models-3","provider":"Vtwinbikers","version":"1.0","type":"link"}