{"product_id":"wiseco-tracker-piston-kit-883-to-1200-evo-sportster-9-5-1-010-k0212p1","title":"Wiseco Tracker Piston Kit 9.5:1 +.010 - Harley EVO Sportster 883-1200 Conversion","description":"\u003c!-- vt:seo-start --\u003e\n\u003cp style=\"line-height:1.65;\"\u003eThe Wiseco Tracker Piston Kit is a +.010 oversized kit built for 883cc to 1200cc conversions, giving riders a big-bore upgrade that starts with forged pistons. The forged piston crown is built to handle the added demands of a larger displacement, providing the durability riders expect from a high-performance upgrade.\u003c\/p\u003e\n\u003cp style=\"line-height:1.65;\"\u003eThe kit features a 9.5:1 compression ratio, which is positioned to deliver power gains and improved throttle response. ArmorGlide skirt coating reduces friction and improves scuff resistance, while force-fed pin oiling supports lubrication of the piston pin. Together these features make the kit a solid foundation for a stronger engine build.\u003c\/p\u003e\n\u003cp style=\"line-height:1.65;\"\u003eBecause this is an oversized kit, the cylinders must be bored and honed precisely to the specifications for these pistons before installation. The 9.5:1 compression ratio is a versatile choice that pairs well with stock heads, giving riders a reliable and powerful upgrade for longevity and optimal results.\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 K0212P1\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 9.5:1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOversize:\u003c\/strong\u003e +.010\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction:\u003c\/strong\u003e Forged\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSkirt Coating:\u003c\/strong\u003e ArmorGlide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePin Oiling:\u003c\/strong\u003e Force-fed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 2.75 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;\"\u003eThe Wiseco Tracker Piston Kit has a 9.5:1 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 is the piston construction?\u003c\/p\u003e\n\u003cp style=\"margin:0;line-height:1.6;\"\u003eThe pistons are forged, built for durability under the increased demands of a larger displacement engine.\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;\"\u003eDo the cylinders need any preparation before installing these pistons?\u003c\/p\u003e\n\u003cp style=\"margin:0;line-height:1.6;\"\u003eYes, this +.010 oversized kit requires cylinders to be bored and honed precisely to the specifications for these pistons.\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\": \"The Wiseco Tracker Piston Kit has a 9.5:1 compression ratio.\"}}, {\"@type\": \"Question\", \"name\": \"What is the piston construction?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The pistons are forged, built for durability under the increased demands of a larger displacement engine.\"}}, {\"@type\": \"Question\", \"name\": \"Do the cylinders need any preparation before installing these pistons?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes, this +.010 oversized kit requires cylinders to be bored and honed precisely to the specifications for these pistons.\"}}]}\u003c\/script\u003e\n\u003c!-- vt:seo-end --\u003e","brand":"Wiseco","offers":[{"title":"Default Title","offer_id":53035850793071,"sku":"K0212P1","price":268.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0608\/6734\/6543\/files\/a743-5c818a776c2db_3c0a2ea7-d586-46db-8e24-1874fdf7f11f.jpg?v=1777529736","url":"https:\/\/vtwinbikers.com\/products\/wiseco-tracker-piston-kit-883-to-1200-evo-sportster-9-5-1-010-k0212p1","provider":"VTWIN BIKERS","version":"1.0","type":"link"}