{"product_id":"gy6-125cc-171cc-1500-rpm-yellow-contra-spring","title":"GY6 125cc-171cc 1500 RPM Yellow Contra Spring","description":"\u003ch2\u003e1500 RPM Yellow Contra Spring for 125cc to 171cc GY6 Scooters\u003c\/h2\u003e\u003cp\u003eThe 1500 RPM Yellow Contra Spring is a performance upgrade for the rear clutch pulley on GY6 scooters between 125cc and 171cc. Its firmer build helps keep belt pressure up, which cuts down on slippage when you accelerate. The result is a higher shift point on the CVT, so the engine can remain in its power band and respond more quickly. It's one of the \u003ca href=\"\/collections\/gy6-scooter-parts\"\u003eGY6 scooter parts\u003c\/a\u003e you can use to improve how your scooter performs.\u003c\/p\u003e\u003ch3\u003ePerformance Benefits\u003c\/h3\u003e\u003cp\u003eThis contra spring is built to deliver more torque by holding firm pressure on the belt during hard acceleration. That added side pressure helps the belt grip more securely, which reduces slip and makes acceleration more efficient. You should find the scooter reaches its power band sooner, giving a livelier ride.\u003c\/p\u003e\u003ch3\u003eCompatibility Details\u003c\/h3\u003e\u003cp\u003eThis spring is made for a broad range of engines that follow GY6 design principles, so it suits many scooter models. It's a good option if you want to swap out the stock spring for a performance version that fits into your existing setup without extra modifications.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRPM Rating:\u003c\/strong\u003e 1500 RPM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Yellow\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWire Diameter:\u003c\/strong\u003e 4.2mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInner Diameter:\u003c\/strong\u003e 48.5mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFree Length:\u003c\/strong\u003e 154.0mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part Number:\u003c\/strong\u003e 660A09GY615\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e GY6 150cc (157QMJ) driven pulley; also listed for GY6 125cc-171cc engines and Buddy 125, 150 and 170i\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eFits:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eGY6 150cc (157QMJ)\u003c\/li\u003e\n\u003cli\u003eBuddy 125, 150 and 170i\u003c\/li\u003e\n\u003cli\u003eSYM, Wolf, Ice Bear, Jonway, TaoTao, ZNEN, Bintelli and BMS GY6 125-150cc scooters (listed as many models, engine code 157QMJ or similar)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eHow to choose:\u003c\/strong\u003e Compare the engine code on your engine case, such as 157QMJ, 152QMI or 161QMK, against the list above.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhere it goes:\u003c\/strong\u003e part #4 on the driven pulley diagram for the GY6 150cc (157QMJ).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOther versions:\u003c\/strong\u003e If you need a different rating, see the Compression Spring GY6 1000 RPM (Standard): \u003ca href=\"\/products\/compression-spring-gy6-1000-rpm-standard\"\u003eCompression Spring (GY6), 1000 RPM (Standard)\u003c\/a\u003e. For engines from 125cc to 200cc, the GY6 125-200cc 2000 RPM Compression\/Contra Spring is available here: \u003ca href=\"\/products\/gy6-125-200cc-2000rpm-compression-contra-spring\"\u003eGY6 125-200cc 2000rpm Compression \/ Contra Spring\u003c\/a\u003e.\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-parts\"\u003eScooter Parts\u003c\/a\u003e\u003c\/p\u003e","brand":"Trend Times Toy Stores","offers":[{"title":"Default Title","offer_id":51138648277049,"sku":"TT-26594","price":17.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0665\/3358\/9049\/files\/1500-rpm-yellow-contra-spring-for-gy6-125cc-171cc-1.jpg?v=1794376539","url":"https:\/\/www.trendtimes.com\/products\/gy6-125cc-171cc-1500-rpm-yellow-contra-spring","provider":"Trend Times Toy Stores","version":"1.0","type":"link"}