{"product_id":"gy6-50cc-139qmb-adjustable-drive-sheave","title":"GY6 50cc (139QMB) Adjustable Drive Sheave (Premium)","description":"\u003ch2\u003eAdjustable Drive Sheave for 50cc CSC Scooters\u003c\/h2\u003e\u003cp\u003eThis adjustable drive sheave is made for 50cc scooters that use the 139QMB engine. It can raise acceleration and push up top speed, so it suits riders who want more performance from their scooter. It is one of the \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc scooter parts\u003c\/a\u003e you can fit yourself at home, and it offers a clear gain in both speed and torque delivery.\u003c\/p\u003e\u003ch3\u003ePerformance Benefits\u003c\/h3\u003e\u003cp\u003eThe drive sheave uses slots arranged in a more linear layout, which helps move torque from the engine to the wheels more effectively. Better power transfer means quicker acceleration and a higher overall top speed. Riders should notice a more responsive scooter, particularly when riding around town.\u003c\/p\u003e\u003ch3\u003eInstallation Details\u003c\/h3\u003e\u003cp\u003eThe kit arrives complete with the rear pulley, bearings and nut, so it is ready to fit as soon as you open the box. When installing on a CSC go model, you will need clutch slider pins for the part to fit correctly. Have the right tools on hand and follow standard installation steps to get the best result.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOuter Diameter:\u003c\/strong\u003e 118.7mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInner Diameter:\u003c\/strong\u003e 33.5mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes:\u003c\/strong\u003e rear pulley, bearings, nut\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e GY6 50cc 139QMB engines: CSC Bella Classic 50, CSC go, CSC go MAX, CSC Nitro Sport 50, CSC Pug 50\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eCompatible with:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCSC Bella Classic 50\u003c\/li\u003e\n\u003cli\u003eCSC go (requires CSC clutch slider pins)\u003c\/li\u003e\n\u003cli\u003eCSC go MAX (requires CSC clutch slider pins)\u003c\/li\u003e\n\u003cli\u003eCSC Nitro Sport 50\u003c\/li\u003e\n\u003cli\u003eCSC Pug 50\u003c\/li\u003e\n\u003cli\u003e139QMB-based 50cc \/ 80cc engines (engine codes 139QMA, 139QMB, 1P39QMB, 1P39QMA-2, YN139QMB, JJ1P39QMB, 139FMA-2, BD1P39QMB, BN139QMB, 147QMD) and other QMA and QMB models\u003c\/li\u003e\n\u003cli\u003eAny engine whose code includes \"QM\" or \"FM\"\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eHow to choose:\u003c\/strong\u003e Compare your engine code with the list: 139QMB, 1P39QMB, YN139QMB, BN139QMB and similar codes, or any code that contains \"QM\" or \"FM\".\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":51134444929081,"sku":"TT-15717","price":101.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0665\/3358\/9049\/files\/gy6-50cc-139qmb-adjustable-drive-sheave-1.jpg?v=1794344025","url":"https:\/\/www.trendtimes.com\/products\/gy6-50cc-139qmb-adjustable-drive-sheave","provider":"Trend Times Toy Stores","version":"1.0","type":"link"}