Description
Bring smooth, dependable power delivery back to your daily ride with the Chicago Scooter Company 681 × 17.7 × 32° CVT Drive Belt. 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.
Features
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CSC OEM Replacement: Direct replacement for the listed original CSC belt configurations.
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Smooth Power Transfer: Correct belt sizing supports consistent CVT operation.
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Daily-Ride Durability: High-tensile synthetic rubber resists stretching, edge-fraying and heat.
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Exact Size Reference: 681mm length, 17.7mm width and 32° angle.
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Cogged Inner Profile: Notched underside suits the belt's CVT pulley path.
Specifications
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Brand: Chicago Scooter Company (CSC)
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Part number: 1200-4002
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Manufacturer reference: 3072004
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Belt size: 681 × 17.7 × 32°
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Material: High-density synthetic rubber
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Application: Matching short-case 50cc / 139QMB-based CVTs
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Country of origin: China
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Quantity: One drive belt
Compatibility - 139QMB-B CVT Transmissions
| CSC Models |
Associated Engine Codes |
| go. / go MAX / Pug 50 |
139QMA, 139QMB, 1P39QMB, 1P39QMA-2 |
| Bella Classic 50 |
YN139QMB, JJ1P39QMB, 147QMD |
| Nitro Sport 50 |
BN139QMB, 139FMA-2, BD1P39QMB |
Also 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.
Compatible 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.
Before ordering: Read the size printed on your existing belt and verify the vehicle's specified belt dimensions.
Model Fitment
CSC 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.
Product Diagrams
