Blue Line
Blue Line 139QMB Gearbox Output Drive Shaft Axle - 155mm
Description
This Blue Line 155 mm gearbox output drive shaft replaces a worn or damaged shaft in the final-drive gearbox of compatible single-shock 139QMB scooters, helping get your scooter back on the road. Its 16-tooth gear, 22-spline wheel connection, and M10 × 1.25 threaded end provide the key specifications to match against your original shaft.
Key Features
- Gearbox output replacement: Transfers drive from the final-drive gearbox to the rear wheel on matching applications.
- Single-shock configuration: For 139QMB scooters using the 155 mm output-shaft setup.
- 16-tooth gear: Match the gear tooth count and profile to your existing gearbox.
- 22-spline connection: Provides the rear-wheel interface for a matching wheel hub.
- Threaded wheel end: M10 × 1.25 thread specification for matching retaining hardware.
Technical Specifications
- Brand: Blue Line
- Part number: 1100-1323
- Part type: Gearbox output drive shaft
- Overall length: 155 mm
- Wheel splines: 22
- Gear teeth: 16
- Thread size: M10 × 1.25
- Application: Matching single-shock 139QMB scooters
Compatibility
| Application | Required configuration |
|---|---|
| Chicago Scooter Company go. and go. MAX | Single-shock models using a matching 155 mm gearbox output shaft |
| Chinese 139QMB-based 50/80cc scooters | Single-shock configuration, 155 mm shaft, 22 wheel splines, 16 gear teeth and M10 × 1.25 threads |
| Related engine codes | 139QMA, 139QMB, 1P39QMB, 1P39QMA-2, YN139QMB, JJ1P39QMB, 139FMA-2, BD1P39QMB, BN139QMB, 147QMD, and other QMA/QMB configurations only when the specified shaft and suspension setup match |
Compare overall length, gear teeth and profile, wheel splines, thread size, bearing and seal journals, and shoulder positions with your original shaft before ordering. This is the 155 mm shaft for the single-shock configuration, not a universal replacement for every 139QMB gearbox. Engine code alone does not establish fitment.
Inspect the mating gears, bearings, seals, and wheel-hub splines during replacement. Assemble and refill the gearbox according to the vehicle manufacturer's service instructions.
Product Diagrams
Features
Specifications
Brand: Blue Line; Part number: 1100-1323; Type: gearbox output drive shaft; Overall length: 155 mm; Wheel splines: 22; Gear teeth: 16; Thread: M10 × 1.25; Application: matching single-shock 139QMB scooters, including CSC go. and go. MAX configurations
Model Fitments
Brands: Amstar, Amigo, Ascend, Baotian, Bashan, Blade, Boom, Chicago Scooter Company, Dongfang, Roketa, Baotian, Bashan, BMS, Cool Sports, E Ton, Fly Wing, Eagle, Fly, Italica, Riya, Ice Bear, Jackel, Jet Moto, JCL, Taotao, Peace, JM Star, Jonway, Kazuma, Keeway, KMD, Kymco, Lance, Lifan, Linhai, Loncin, Longbo, Fuxin, Jiajue, Tao Tao, Tao Motors, Trailmaster, Maxtrade, Meitien, Motofino, Motorino, NST, Panterra, Panther, Qlink, Yiben, Red Streak, Redcat, Roketa, Schwinn, Strada, SYM, Tank, Terminator ,Tomberlin, TNG, United Motors, Vento, Vitacci, Wildfire, Wolf, X-Treme, X-Pro, Yongfu, ZNEN, Zhongneng , Zhilong, Geely, Wangye, ZH and more Manufactured by: Taizhou Zhongneng Motorcycle Co.; Jiangsu Zhongneng Motorcycle Co.; Jiangsu Meijunte Technology Co.; Taizhou Qianxin Vehicle Co.; Ningbo Dongfang Lingyun Vehicle Made Co.; Taizhou Zhilong Technology Co.; Zhejiang Jiajue Motorcycle Manufacturing Co.; Zhejiang Gelly Ming Industrial Co.; Taizhou City Senglong Motorcycle Manufacture Co.; Jiangsu Sacin Motorcycle Co.; Jiangsu Linhai Power Machinery Group Co.; Zheijiang TaoTao Vehicles Co.; Zhejiang Senling Motorcycle Co.; Sanmen County Yongfu Machine Co; Taizhou Jiaojiang Zhiwei Motorcycle Manufacture Co.; Huzhou Daixi Zhenhua Technology Trade Co.; Taizhou Zhongneng Motorcycle Co.; Zhejiang Riya Motorcycle Co.; Ningbo Longjia Motorcycle Co.; Taizhou Zhongneng Motorcycle Co.; and more
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Same day shipping for orders placed before 2PM (CST) M-F
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30-day return period on eligible items
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Flat-rate shipping for orders shipped to the 48 Contiguous United States.
