{"product_id":"upgear-kit-16x42-50cc-139qmb-gy6-50cc-scooters","title":"Upgear Kit 16x42 - 50cc (139QMB) GY6 50cc Scooters","description":"\u003ch2\u003e16x42 Gear Kit for 139QMB GY6 50cc Scooters\u003c\/h2\u003e\u003cp\u003eThis 16x42 gear set is built for 139QMB (GY6 50cc) 4-stroke engines. Fitting it raises the final drive ratio by roughly 24%, which can lift top speed and widen the usable rev range. It suits big-bore engine builds in particular. Browse other \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc scooter parts\u003c\/a\u003e if you want to complete your setup.\u003c\/p\u003e\u003ch3\u003ePerformance Gains\u003c\/h3\u003e\u003cp\u003eThe 16-tooth countershaft piece and the 42-tooth final piece together create a taller gear ratio than stock. The change matters most on modified engines, where riders can reach higher speeds and gain some acceleration. On a stock setup, the difference is small.\u003c\/p\u003e\u003ch3\u003eBuild Quality\u003c\/h3\u003e\u003cp\u003eThese gears are made from machined steel for strength and durability. The solid build is meant to cope with the extra load from a more powerful engine while still holding up over time. The kit is designed to install easily into an existing engine.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGear Ratio:\u003c\/strong\u003e 16x42\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Machined Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e Any 139QMB \/ GY6 50cc 4-stroke scooter, including CSC, Wolf, Peace Sports, Tao Tao, Icebear, Jonway\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cp\u003eCompatible with:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eAny 139QMB \/ GY6 50cc 4-stroke scooter (based on engine type)\u003c\/li\u003e\n\u003cli\u003eCSC scooters (GY6 50cc 4-stroke)\u003c\/li\u003e\n\u003cli\u003eWolf scooters (GY6 50cc 4-stroke)\u003c\/li\u003e\n\u003cli\u003ePeace Sports scooters (GY6 50cc 4-stroke)\u003c\/li\u003e\n\u003cli\u003eTao Tao scooters (GY6 50cc 4-stroke)\u003c\/li\u003e\n\u003cli\u003eIcebear scooters (GY6 50cc 4-stroke)\u003c\/li\u003e\n\u003cli\u003eJonway scooters (GY6 50cc 4-stroke)\u003c\/li\u003e\n\u003cli\u003eBintelli scooters (GY6 50cc 4-stroke)\u003c\/li\u003e\n\u003cli\u003eBMS scooters (GY6 50cc 4-stroke)\u003c\/li\u003e\n\u003cli\u003eSSR Motorsports scooters (GY6 50cc 4-stroke)\u003c\/li\u003e\n\u003cli\u003eSunL scooters (GY6 50cc 4-stroke)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eHow to choose:\u003c\/strong\u003e Only use this kit on a 139QMB \/ GY6 50cc 4-stroke engine, since that is the engine it is made for.\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-parts\"\u003eScooter Parts\u003c\/a\u003e\u003c\/p\u003e","brand":"Trend Times Toy Stores","offers":[{"title":"Default Title","offer_id":51137694564409,"sku":"TT-22990","price":62.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0665\/3358\/9049\/files\/upgear-kit-16x42-50cc-139qmb-gy6-50cc-scooters-1.jpg?v=1794366880","url":"https:\/\/www.trendtimes.com\/products\/upgear-kit-16x42-50cc-139qmb-gy6-50cc-scooters","provider":"Trend Times Toy Stores","version":"1.0","type":"link"}