{"product_id":"gy6-17-49t-starter-reduction-gear","title":"GY6 17\/49T Starter Reduction Gear","description":"\u003ch2\u003eStarter Reduction Gear for GY6 Engines\u003c\/h2\u003e\u003cp\u003eThis starter reduction gear is built for GY6 engines and helps bring back dependable electric starting. It works well as a substitute for gears that have worn down or been damaged. You can find it among our \u003ca href=\"\/collections\/gy6-scooter-parts\"\u003eGY6 scooter parts\u003c\/a\u003e, which help keep your scooter running smoothly. Its stepped, two-stage construction handles power transfer in electric-start setups.\u003c\/p\u003e\u003ch3\u003eTwo-Stage Gear Layout\u003c\/h3\u003e\u003cp\u003eThe gear uses a two-stage arrangement with a 17-tooth upper gear and a 49-tooth lower gear. Together these gears transfer torque efficiently, which matters for consistent starting on electric-start systems. The stepped build also makes installation easier, since the step offers clear points to line up against the original part.\u003c\/p\u003e\u003ch3\u003eCompatibility and Fitment\u003c\/h3\u003e\u003cp\u003eThis gear suits GY6 starter setups from 125cc to 150cc, along with a range of applications based on the 157QMJ engine. Before buying, check your original part's specs, including bore diameter and tooth count, to confirm it will fit. It is made to match systems that use the same gear layout, so it works as a direct replacement option.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eComponent:\u003c\/strong\u003e Starter reduction gear\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInner Diameter:\u003c\/strong\u003e 10 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUpper Gear Teeth:\u003c\/strong\u003e 17\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLower Gear Teeth:\u003c\/strong\u003e 49\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part Number:\u003c\/strong\u003e 3121002\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e GY6 150cc (157QMJ) engines with 17\/49-tooth starter reduction gear and 10 mm bore\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eFits:\u003c\/p\u003e\u003cul\u003e\u003cli\u003eGY6 150cc (157QMJ) (10 mm bore, 17 upper teeth, 49 lower teeth)\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eHow to choose:\u003c\/strong\u003e Make sure the 10 mm center bore and the 17 upper \/ 49 lower tooth count match your original starter reduction gear.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhere it goes:\u003c\/strong\u003e part #1 on the starter diagram for the GY6 150cc (157QMJ).\u003c\/p\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-starters-relays\"\u003eScooter Starters \u0026amp; Relays\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-transmission\"\u003eScooter Transmission \u0026amp; Final Drive\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":51138815983673,"sku":"TT-26906","price":6.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0665\/3358\/9049\/files\/17-49t-starter-reduction-gear-for-gy6-1.jpg?v=1794378023","url":"https:\/\/www.trendtimes.com\/products\/gy6-17-49t-starter-reduction-gear","provider":"Trend Times Toy Stores","version":"1.0","type":"link"}