{"product_id":"gy6-125-150cc-scooter-15-36-upgear-set","title":"GY6 125\/150cc Scooter 15\/36 Upgear Set","description":"\u003ch2\u003e15\/36 Gear Set for GY6 125cc and 150cc Scooters\u003c\/h2\u003e\u003cp\u003eThis 15\/36 upgear set is built to raise the performance of compatible GY6 125cc and 150cc scooter transmissions. Its gearing sits 22% higher than the stock 13\/40 set, which can help with higher top speed and a broader usable rev range. It is a key item among \u003ca href=\"\/collections\/gy6-150cc-parts\"\u003eGY6 150cc scooter parts\u003c\/a\u003e for big-bore builds that need the extra gearing to make full use of the added power.\u003c\/p\u003e\u003ch3\u003ePerformance Upgrade\u003c\/h3\u003e\u003cp\u003eThe kit contains a 15-tooth countershaft gear and a 36-tooth final-drive gear, giving a longer, taller ratio than the factory setup. Riders chasing the most from a performance build will find this change useful, as it can support quicker acceleration and higher speed, which suits racing use.\u003c\/p\u003e\u003ch3\u003eInstallation Notes\u003c\/h3\u003e\u003cp\u003eInstalling this set means keeping the factory 42-tooth countershaft gear in place. Assembly calls for a press and some prior transmission experience. Note that this performance part is intended for off-road use only and is not meant for public roads.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountershaft Gear:\u003c\/strong\u003e 15 teeth; spline length 24 mm; outer diameter 31.1 mm; overall length 60 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePress-On Section:\u003c\/strong\u003e 12.08 mm long × 19.08 mm outer diameter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnd Sections:\u003c\/strong\u003e 9–10.5 mm long × 15 mm outer diameter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinal-Drive Gear:\u003c\/strong\u003e 36 teeth; 19 internal splines; 71.2 mm outer diameter; 18 mm inner diameter; 20 mm width\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReference Stock Gear Set:\u003c\/strong\u003e 13\/40\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e Taiwan\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e GY6 150cc (157QMJ) transmission\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eFits:\u003c\/p\u003e\u003cul\u003e\u003cli\u003eGY6 150cc (157QMJ)\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eWhere it goes:\u003c\/strong\u003e part #17 on the transmission diagram for the GY6 150cc (157QMJ).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOther versions:\u003c\/strong\u003e For GY6 125cc and 150cc engines using the 16x38 gear set: \u003ca href=\"\/products\/gy6-125cc-150cc-engines-upgear-set-16x38\"\u003eGY6 125cc\/150cc Engines Upgear Set 16x38\u003c\/a\u003e.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShop more:\u003c\/strong\u003e \u003ca href=\"\/collections\/gy6-150cc-parts\"\u003eGY6 150cc Scooter Parts (157QMJ)\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":51138637365305,"sku":"TT-26484","price":52.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0665\/3358\/9049\/files\/15-36-upgear-set-for-gy6-125-150cc-scooters-1.webp?v=1794376488","url":"https:\/\/www.trendtimes.com\/products\/gy6-125-150cc-scooter-15-36-upgear-set","provider":"Trend Times Toy Stores","version":"1.0","type":"link"}