{"product_id":"drive-belt-csc-go-medium-case-qmb139-scooters","title":"OEM 681-17.7-32 CVT Drive Belt - 139QMB\/GY6 50cc Scooters","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\u003cp\u003eBring smooth, dependable power delivery back to your daily ride with the \u003cstrong\u003eChicago Scooter Company 681 × 17.7 × 32° CVT Drive Belt\u003c\/strong\u003e. This OEM replacement serves the listed CSC 50cc scooters and compatible short-case 139QMB\/GY6-based setups that require this belt size. High-tensile synthetic rubber resists stretching, edge-fraying and heat from stop-and-go riding, making it a practical refresh for a worn belt.\u003c\/p\u003e\u003ch2\u003eFeatures\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCSC OEM Replacement:\u003c\/strong\u003e Direct replacement for the listed original CSC belt configurations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmooth Power Transfer:\u003c\/strong\u003e Correct belt sizing supports consistent CVT operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDaily-Ride Durability:\u003c\/strong\u003e High-tensile synthetic rubber resists stretching, edge-fraying and heat.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExact Size Reference:\u003c\/strong\u003e 681mm length, 17.7mm width and 32° angle.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCogged Inner Profile:\u003c\/strong\u003e Notched underside suits the belt's CVT pulley path.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Chicago Scooter Company (CSC)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e 1200-4002\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer reference:\u003c\/strong\u003e 3072004\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBelt size:\u003c\/strong\u003e 681 × 17.7 × 32°\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e High-density synthetic rubber\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Matching short-case 50cc \/ 139QMB-based CVTs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of origin:\u003c\/strong\u003e China\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e One drive belt\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCompatibility -  139QMB-B CVT Transmissions\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eCSC Models\u003c\/th\u003e\n\u003cth\u003eAssociated Engine Codes\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ego. \/ go MAX \/ Pug 50\u003c\/td\u003e\n\u003ctd\u003e139QMA, 139QMB, 1P39QMB, 1P39QMA-2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBella Classic 50\u003c\/td\u003e\n\u003ctd\u003eYN139QMB, JJ1P39QMB, 147QMD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNitro Sport 50\u003c\/td\u003e\n\u003ctd\u003eBN139QMB, 139FMA-2, BD1P39QMB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003eAlso fits matching 139QMB-B based 50cc\/80cc short-case setups, including associated codes 139QMA, 139QMB, 1P39QMB, 1P39QMA-2, YN139QMB, JJ1P39QMB and 139FMA-2, when the CVT requires a 681 × 17.7 × 32° belt.\u003c\/p\u003e\u003cp\u003eCompatible applications include matching scooters from Amstar, Baotian, Bashan, BMS, Chicago Scooter Company, Dongfang, E-Ton, Ice Bear, Jonway, Keeway, Kymco, Lance, Lifan, Linhai, Loncin, Motorino, Roketa, SYM, TaoTao, Vento, Vitacci, Wolf, X-Pro and ZNEN. These are configuration-dependent applications, not a guarantee for every scooter from each brand.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBefore ordering:\u003c\/strong\u003e Read the size printed on your existing belt and verify the vehicle's specified belt dimensions. \u003c\/p\u003e\u003ch2\u003eModel Fitment\u003c\/h2\u003e\u003cp\u003eCSC go., go MAX, Pug 50, Bella Classic 50 and Nitro Sport 50 with matching 681 x 17.7 x 32° belt specification. Associated codes: 139QMA, 139QMB, 1P39QMB, 1P39QMA-2, YN139QMB, JJ1P39QMB, 147QMD, BN139QMB, 139FMA-2, BD1P39QMB. Also dimension-matched 139QMB-based 50cc\/80cc short-case scooters from Amstar, Baotian, Bashan, BMS, Dongfang, E-Ton, Ice Bear, Jonway, Keeway, Kymco, Lance, Lifan, Linhai, Loncin, Motorino, Roketa, SYM, TaoTao, Vento, Vitacci, Wolf, X-Pro and ZNEN. Verify belt print and specified dimensions; engine code alone does not establish fit.\u003c\/p\u003e\u003ch2\u003eProduct Diagrams\u003c\/h2\u003e\u003cul class=\"az-content-resources\"\u003e\u003cli\u003e\n\u003ca href=\"\/search?view=az-assembly\u0026amp;q=266\"\u003eGO MAX TRANSMISSION\u003c\/a\u003e \u003cspan\u003eCallout 3\u003c\/span\u003e\n\u003c\/li\u003e\u003c\/ul\u003e","brand":"Chicago Scooter Company","offers":[{"title":"Default Title","offer_id":67964618703169,"sku":"1200-4002","price":27.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1011\/7785\/2225\/files\/az-p012-9349-0-1200-4002_0e633a37-ca0f-49bb-8c24-b41bdf199608.jpg?v=1792558007","url":"https:\/\/azscooterparts.com\/products\/drive-belt-csc-go-medium-case-qmb139-scooters","provider":"AZScooterParts","version":"1.0","type":"link"}