{"product_id":"gy6-engine-gear-sets-tt","title":"GY6 Engine Gear Sets","description":"\u003ch2\u003ePerformance Gear Sets for GY6 125cc and 150cc Engines\u003c\/h2\u003e\u003cp\u003eThese performance gear sets are made for 125cc and 150cc GY6 4-stroke engines, the type usually found in full-size scooters and all-terrain vehicles. With several prepackaged gear ratios to choose from, you can adjust how your ride performs. They are one of the \u003ca href=\"\/collections\/gy6-scooter-parts\"\u003eGY6 scooter parts\u003c\/a\u003e that can meaningfully boost engine efficiency and output. Pick from several front and rear tooth pairings to match what you need.\u003c\/p\u003e\u003ch3\u003eAvailable Gear Pairings\u003c\/h3\u003e\u003cp\u003eThe sets come with front tooth counts of 14, 16, 17, or 18, paired with rear tooth counts of 35, 36, 37, or 38. That range lets you set the ratio around whether you care more about top speed or low-end pull. The right pairing can help your scooter handle different terrain more smoothly.\u003c\/p\u003e\u003ch3\u003eDimensions and Part Details\u003c\/h3\u003e\u003cp\u003eThe small gear measures 60.5mm overall. The large gear has 19 splines, an inner diameter of 18mm peak to peak, and a thickness of 20mm. These dimensions are meant to suit most GY6 engine builds, so the sets are a practical option for riders who want to improve power delivery. For the best results, a big bore kit is recommended alongside these gear sets.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length:\u003c\/strong\u003e 60.5mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Splines:\u003c\/strong\u003e 19\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInner Diameter:\u003c\/strong\u003e 18mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e 20mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e 150cc and 125cc GY6 4-stroke engines on full-size street scooters and off-road vehicles\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eFits:\u003c\/p\u003e\u003cul\u003e\u003cli\u003e150cc and 125cc GY6 4-stroke engines (full-size street scooters and off-road vehicles)\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eHow to choose:\u003c\/strong\u003e Select your ratio by tooth count: 14F\/38R, 16F\/36R, 17F\/36R, or 18F\/35R (front teeth listed first, rear teeth second). Recommended with a big bore kit.\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-transmission\"\u003eScooter Transmission \u0026amp; Final Drive\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-engines\"\u003eScooter Engines \u0026amp; Engine Parts\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-parts\"\u003eScooter Parts\u003c\/a\u003e\u003c\/p\u003e","brand":"Trend Times Toy Stores","offers":[{"title":"16F\/36R","offer_id":51135916703801,"sku":"TT-16695","price":66.98,"currency_code":"USD","in_stock":true},{"title":"17F\/36R","offer_id":51135916736569,"sku":"TT-16696","price":66.98,"currency_code":"USD","in_stock":true},{"title":"14F\/38R","offer_id":51135916769337,"sku":"TT-16697","price":66.98,"currency_code":"USD","in_stock":true},{"title":"18F\/35R","offer_id":51135916802105,"sku":"TT-16698","price":66.98,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0665\/3358\/9049\/files\/gy6-engine-gear-sets-1.jpg?v=1794350060","url":"https:\/\/www.trendtimes.com\/products\/gy6-engine-gear-sets-tt","provider":"Trend Times Toy Stores","version":"1.0","type":"link"}