{"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 Performance Variator Kit is designed for 50cc 4-stroke scooters utilizing the QMB139 \/ 139QMB engine. It offers a complete solution for those looking to improve the CVT performance of their ride. It is one of the \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc scooter parts\u003c\/a\u003e that can significantly boost acceleration and overall efficiency. This kit is an excellent choice for both stock and mildly tuned scooters.\u003c\/p\u003e\u003ch3\u003eKey Features of the Variator Kit\u003c\/h3\u003e\u003cp\u003eThe variator kit comes with a PTFE-coated drive face, which minimizes friction and prevents wear on the belt and rollers. The movable face is made from aluminum and features red slider guides, promoting smooth belt engagement. This complete set includes everything necessary for a straightforward installation, making it a practical upgrade for your scooter's performance.\u003c\/p\u003e\u003ch3\u003eConstruction Details\u003c\/h3\u003e\u003cp\u003eThis kit features an 88mm outer diameter, specifically designed for the short-case 50cc CVT systems. The inclusion of 6 roller weights, each measuring 16x13mm, helps optimize the CVT shift curve, improving the ride experience. The kit also contains critical components for a secure fit and reliable 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\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eThis variator kit is compatible with various scooters and their engines:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eGenuine Buddy 50\u003c\/li\u003e\n\u003cli\u003eGenuine RoughHouse 50\u003c\/li\u003e\n\u003cli\u003eHonda Ruckus (NPS50)\u003c\/li\u003e\n\u003cli\u003eKYMCO Agility 50\u003c\/li\u003e\n\u003cli\u003eKYMCO Vitality 50\u003c\/li\u003e\n\u003cli\u003eKYMCO Filly 50\u003c\/li\u003e\n\u003cli\u003eSYM Mio 50\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eNot sure it fits? Contact us with your scooter's make, model and year and we'll confirm the fit before you order.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShop more:\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":"Magic Cars","offers":[{"title":"Default Title","offer_id":52795179466983,"sku":"25-902833","price":76.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2245\/9711\/files\/performance-variator-kit-50cc-139qmb-gy6-50cc-4-stroke-1.webp?v=1791584220","url":"https:\/\/www.magiccars.com\/products\/performance-variator-kit-50cc-139qmb-gy6-50cc-4-stroke","provider":"MagicCars","version":"1.0","type":"link"}