{"product_id":"performance-variator-kit-50cc-139qmb-gy6-50cc-4-stroke","title":"Performance Variator Kit - 50cc (139QMB) GY6 50cc 4-Stroke","description":"\u003ch2\u003ePerformance Variator Kit for GY6 50cc 4-Stroke Scooters\u003c\/h2\u003e\u003cp\u003eThis variator kit is built for 50cc 4-stroke scooters running the QMB139 \/ 139QMB engine. It is a full package for riders who want more from their CVT. It sits among our \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc scooter parts\u003c\/a\u003e and can noticeably improve acceleration and general efficiency. It suits both stock scooters and those with mild tuning.\u003c\/p\u003e\u003ch3\u003eWhat Sets This Variator Kit Apart\u003c\/h3\u003e\u003cp\u003eThe drive face is PTFE-coated, which cuts down on friction and helps protect the belt and rollers from wear. The movable face is aluminum and has red slider guides that help the belt engage smoothly. Everything needed for a simple installation is included, so it is a practical upgrade for your scooter's performance.\u003c\/p\u003e\u003ch3\u003eBuild Specifics\u003c\/h3\u003e\u003cp\u003eThe kit measures 88mm across the outside and is made for short-case 50cc CVT systems. It uses 6 roller weights, each 16x13mm, which help tune the CVT shift curve for a better ride. The kit also includes the key parts needed for a secure fit and dependable operation.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrive Face Coating:\u003c\/strong\u003e PTFE (inner surface)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariator Outer Diameter:\u003c\/strong\u003e 88mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes:\u003c\/strong\u003e PTFE-coated variator drive face, movable face, 6 roller weights, bronze bushing, steel boss sleeve\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine:\u003c\/strong\u003e QMB139 \/ 139QMB 50cc 4-stroke\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e QMB139 \/ 139QMB 50cc 4-stroke GY6 engines, 88mm short-case CVT, on the listed scooters\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCompatible Scooters\u003c\/h3\u003e\u003cp\u003eFits:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eBuddy 50\u003c\/li\u003e\n\u003cli\u003eRoughHouse 50\u003c\/li\u003e\n\u003cli\u003eHonda Ruckus (NPS50)\u003c\/li\u003e\n\u003cli\u003eKYMCO Agility 50, Vitality 50, Filly 50\u003c\/li\u003e\n\u003cli\u003eSYM Mio 50\u003c\/li\u003e\n\u003cli\u003eQMB139 \/ 139QMB 50cc \/ 49cc 4-stroke engines (various makes)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eHow to choose:\u003c\/strong\u003e Confirm your engine is a QMB139 \/ 139QMB, a 50cc 4-stroke with an 88mm short-case CVT. Check that your variator outer diameter is 88mm before you order.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBrowse related parts:\u003c\/strong\u003e \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc Scooter Parts (139QMB)\u003c\/a\u003e · \u003ca href=\"\/collections\/gy6-scooter-parts\"\u003eGY6 Scooter Parts\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-variators-rollers\"\u003eScooter Variators \u0026amp; Roller Weights\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":51135785173049,"sku":"TT-16467","price":75.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0665\/3358\/9049\/files\/performance-variator-kit-50cc-139qmb-gy6-50cc-4-stroke-1.webp?v=1794349752","url":"https:\/\/www.trendtimes.com\/products\/performance-variator-kit-50cc-139qmb-gy6-50cc-4-stroke","provider":"Trend Times Toy Stores","version":"1.0","type":"link"}