{"product_id":"gy6-50cc-139qmb-countershaft","title":"GY6 50cc (139QMB) Countershaft","description":"\u003ch2\u003eCountershaft for 139QMB Engines in CSC Scooters\u003c\/h2\u003e\u003cp\u003eThis countershaft reduction gear is built for CSC scooters, including the go MAX, Bella Classic, Nitro Sport, and Pug models. It is a dependable stand-in for the factory component and helps keep operation smooth. It belongs to the \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc scooter parts\u003c\/a\u003e range and contributes meaningfully to how the drivetrain performs.\u003c\/p\u003e\u003ch3\u003eSigns It May Need Replacing\u003c\/h3\u003e\u003cp\u003eA worn or damaged countershaft can cost your scooter some power and efficiency. Strange noises or weaker acceleration are good reasons to think about swapping it out. Keeping up with routine maintenance makes it easier to ride reliably in everyday traffic.\u003c\/p\u003e\u003ch3\u003eFitting Notes\u003c\/h3\u003e\u003cp\u003eThis countershaft slots directly into the existing housing, so it works as a direct replacement for the original part on your scooter. Have the proper tools on hand and stick to the specifications to get a correct fit. It is compatible with several engine codes, which widens the range of machines it suits.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Teeth (Large Gear):\u003c\/strong\u003e 52\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Teeth (Small Gear):\u003c\/strong\u003e 15\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length:\u003c\/strong\u003e 57mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part Number:\u003c\/strong\u003e 139QMB, 1P39QMB, 1P39QMA-2, YN139QMB, and others\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e CSC go, go MAX, Bella Classic 50, Nitro Sport 50, Pug 50, and bikes running 139QMB engines\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cp\u003eFits:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eGY6 50cc (139QMB)\u003c\/li\u003e\n\u003cli\u003eCSC go\u003c\/li\u003e\n\u003cli\u003eCSC go MAX\u003c\/li\u003e\n\u003cli\u003eCSC Bella Classic 50\u003c\/li\u003e\n\u003cli\u003eCSC Nitro Sport 50\u003c\/li\u003e\n\u003cli\u003eCSC Pug 50\u003c\/li\u003e\n\u003cli\u003eBikes with 139QMB-based 50cc \/ 80cc engines (engine codes 139QMA, 139QMB, 1P39QMB, 1P39QMA-2, YN139QMB, JJ1P39QMB, 139FMA-2, BD1P39QMB, BN139QMB, 147QMD, other QMA and QMB models; codes including QM or FM)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eHow to choose:\u003c\/strong\u003e Before ordering, compare the engine code printed on your engine with the codes listed above, such as 139QMB or 1P39QMB.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eLocation in the gearbox:\u003c\/strong\u003e part #6 on the gear box diagram for the GY6 50cc (139QMB), CSC Go; part #6 on the gear box diagram for the CSC Bella Classic 50; part #6 on the gear box diagram for the CSC Go Max.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBrowse further:\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":51138785476665,"sku":"TT-26736","price":17.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0665\/3358\/9049\/files\/countershaft-for-gy6-50cc-139qmb-1.jpg?v=1794377770","url":"https:\/\/www.trendtimes.com\/products\/gy6-50cc-139qmb-countershaft","provider":"Trend Times Toy Stores","version":"1.0","type":"link"}