{"product_id":"wiseco-v-twin-piston-kit-1200-evo-sportster-10-5-1-comp-k1687","title":"Wiseco 1200 EVO Sportster 10.5:1 Compression Piston Kit - K1687 - Harley Sportster","description":"\u003c!-- vt:seo-start --\u003e\n\u003cp style=\"line-height:1.65;\"\u003eThe Wiseco K1687 is a forged piston kit with a 10.5:1 compression ratio, built for riders who want more power and durability from their V-twin engine. It is an upgrade over stock pistons for a 1200 cc engine, giving a noticeable step up in performance.\u003c\/p\u003e\n\u003cp style=\"line-height:1.65;\"\u003eEach piston is precision-forged from high-silicon, low-expansion aluminum. This material offers a strong balance of strength, reduced weight, and good thermal properties, helping the engine run cooler and hold up under demanding riding conditions. The diamond-turned finish is produced by CNC machining for consistent, zero-variation sizing.\u003c\/p\u003e\n\u003cp style=\"line-height:1.65;\"\u003eOversize options are available for re-sleeved cylinders, which makes this kit suitable for routine rebuilds as well as builds aimed at more power. The Wiseco K1687 is a dependable component for riders focused on a stronger, longer-lasting engine.\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 K1687\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 Forged high-silicon aluminum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Precision diamond-turned\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 2.8387 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 compression ratio do these pistons have?\u003c\/p\u003e\n\u003cp style=\"margin:0;line-height:1.6;\"\u003eThe Wiseco K1687 pistons are designed for a 10.5:1 compression ratio, which provides increased power over stock.\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;\"\u003eEach piston is precision-forged from high-silicon aluminum, chosen for its strength, reduced weight, and excellent thermal properties.\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;\"\u003eYes, oversize options are available 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 compression ratio do these pistons have?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The Wiseco K1687 pistons are designed for a 10.5:1 compression ratio, which provides increased power over stock.\"}}, {\"@type\": \"Question\", \"name\": \"What material are the pistons made from?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Each piston is precision-forged from high-silicon aluminum, chosen for its strength, reduced weight, and excellent thermal properties.\"}}, {\"@type\": \"Question\", \"name\": \"Are oversize options available?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes, oversize options are available for re-sleeved cylinders.\"}}]}\u003c\/script\u003e\n\u003c!-- vt:seo-end --\u003e","brand":"Wiseco","offers":[{"title":"Default Title","offer_id":53035619745903,"sku":"K1687","price":447.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0608\/6734\/6543\/files\/0592-5ecd6a717ec37.jpg?v=1777528969","url":"https:\/\/vtwinbikers.com\/products\/wiseco-v-twin-piston-kit-1200-evo-sportster-10-5-1-comp-k1687","provider":"VTWIN BIKERS","version":"1.0","type":"link"}