{"product_id":"wiseco-v-twin-piston-kit-1200-sportster-10-5-1-comp-k1746","title":"Wiseco 1200 Sportster 10.5:1 Compression Piston Kit - K1746 - Harley Sportster","description":"\u003c!-- vt:seo-start --\u003e\n\u003cp style=\"line-height:1.65;\"\u003eThis Wiseco K1746 is a forged piston kit with a 10.5:1 compression ratio, made from high-silicon aluminum for strength and heat transfer. The forged construction is intended to give the piston durability under load, and the high-silicon aluminum is chosen for its heat transfer properties, which help the piston shed heat and support engine longevity.\u003c\/p\u003e\n\u003cp style=\"line-height:1.65;\"\u003eThe 10.5:1 compression ratio is the main reason riders choose this kit, offering a higher compression level for a noticeable increase in usable power. The kit works with all common cylinder bore materials, which makes it a flexible option for different builds. Oversize availability is offered for re-sleeved cylinders, giving builders more options when the cylinder bore has been refinished.\u003c\/p\u003e\n\u003cp style=\"line-height:1.65;\"\u003eThe piston is designed to be lighter while still providing the strength expected from a forged piece, and the improved heat dissipation supports long-term reliability in V-twin applications. Riders looking to refresh the top end of an engine will find this kit a solid choice for restoration or performance work. Installation and tuning decisions should be made with the rest of the engine build in mind.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFor off-road \/ closed-course race use only.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3 style=\"margin:20px 0 6px;\"\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Wiseco\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e K1746\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Piston kits \u0026amp; Components\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompression Ratio:\u003c\/strong\u003e 10.5:1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e High-silicon aluminum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction:\u003c\/strong\u003e Forged\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 3.3755 lbs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"margin:22px 0 8px;\"\u003eCommon questions\u003c\/h3\u003e\u003cdiv class=\"vt-faq\"\u003e\n\u003cdiv style=\"margin:0 0 12px;\"\u003e\n\u003cp style=\"margin:0 0 3px;font-weight:600;\"\u003eWhat is the compression ratio of this piston kit?\u003c\/p\u003e\n\u003cp style=\"margin:0;line-height:1.6;\"\u003eThis Wiseco piston kit has a 10.5:1 compression ratio.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin:0 0 12px;\"\u003e\n\u003cp style=\"margin:0 0 3px;font-weight:600;\"\u003eWhat material are the pistons made from?\u003c\/p\u003e\n\u003cp style=\"margin:0;line-height:1.6;\"\u003eThe pistons are forged from high-silicon aluminum, chosen for its strength and heat transfer.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin:0 0 12px;\"\u003e\n\u003cp style=\"margin:0 0 3px;font-weight:600;\"\u003eAre oversize options available?\u003c\/p\u003e\n\u003cp style=\"margin:0;line-height:1.6;\"\u003eOversize availability is offered for re-sleeved cylinders.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What is the compression ratio of this piston kit?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This Wiseco piston kit has a 10.5:1 compression ratio.\"}}, {\"@type\": \"Question\", \"name\": \"What material are the pistons made from?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The pistons are forged from high-silicon aluminum, chosen for its strength and heat transfer.\"}}, {\"@type\": \"Question\", \"name\": \"Are oversize options available?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Oversize availability is offered for re-sleeved cylinders.\"}}]}\u003c\/script\u003e\n\u003c!-- vt:seo-end --\u003e","brand":"Wiseco","offers":[{"title":"Default Title","offer_id":53035619811439,"sku":"K1746","price":466.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0608\/6734\/6543\/files\/b742-5c62f80a5096d.jpg?v=1777528970","url":"https:\/\/vtwinbikers.com\/products\/wiseco-v-twin-piston-kit-1200-sportster-10-5-1-comp-k1746","provider":"VTWIN BIKERS","version":"1.0","type":"link"}