{"product_id":"8-2mm-gy6-stroker-crank","title":"+8.2mm GY6 Stroker Crank","description":"\u003ch2\u003e+8.2mm Stroker Crankshaft for GY6 B-Case Motors\u003c\/h2\u003e\u003cp\u003eThis +8.2mm stroker crankshaft is built for B-case GY6 motors and increases displacement when used with a matching cylinder kit. Its 66mm total stroke produces 232cc when paired with a 67mm cylinder. It is one of the \u003ca href=\"\/collections\/gy6-scooter-parts\"\u003eGY6 scooter parts\u003c\/a\u003e that can raise engine output, a practical option for anyone wanting more from their scooter.\u003c\/p\u003e\u003ch3\u003ePerformance Specifications\u003c\/h3\u003e\u003cp\u003eThe crank has a 66mm stroke and a 15mm piston pin hole diameter. Main bearings are included so the unit is ready to install, and it suits performance builds. A spacer may be required to fit most cylinder kits.\u003c\/p\u003e\u003ch3\u003eInstallation Requirements\u003c\/h3\u003e\u003cp\u003eBoth the flywheel end and the drive end use M12x1.25 threads, each 16mm long. Correct fitting is essential for the engine to run properly, so follow all installation guidance carefully.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStroke:\u003c\/strong\u003e 66mm (+8.2mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlywheel Thread Size:\u003c\/strong\u003e M12x1.25\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlywheel Thread Length:\u003c\/strong\u003e 16mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrive End Thread Size:\u003c\/strong\u003e M12x1.25\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrive End Thread Length:\u003c\/strong\u003e 16mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInner Diameter (Piston Pin Hole):\u003c\/strong\u003e 15mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Splines:\u003c\/strong\u003e 19\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e GY6 B-case engines (QMI\/QMJ 152\/157 family) with +8.2mm stroker crank, 66mm stroke\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eFits:\u003c\/p\u003e\u003cul\u003e\u003cli\u003eGY6 QMI\/QMJ 152\/157 (B-case engines)\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eShop more:\u003c\/strong\u003e \u003ca href=\"\/collections\/gy6-scooter-parts\"\u003eGY6 Scooter Parts\u003c\/a\u003e · \u003ca href=\"\/collections\/chinese-scooter-parts\"\u003eChinese Scooter Parts\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-engines\"\u003eScooter Engines \u0026amp; Engine Parts\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-parts\"\u003eScooter Parts\u003c\/a\u003e\u003c\/p\u003e","brand":"Trend Times Toy Stores","offers":[{"title":"Default Title","offer_id":51135735562297,"sku":"TT-16399","price":325.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0665\/3358\/9049\/files\/8-2mm-gy6-stroker-crank-1.jpg?v=1794349649","url":"https:\/\/www.trendtimes.com\/products\/8-2mm-gy6-stroker-crank","provider":"Trend Times Toy Stores","version":"1.0","type":"link"}