A replacement rear axle (also called output shaft or final drive shaft) for 139QMB-based 50cc 4-stroke scooter engines. Fits Chicago Scooter Company go, go MAX, Bella Classic 50, Pug 50, and Nitro Sport 50, as well as any scooter running a 139QMB or compatible engine code. SKU: 151-55.
Direct OEM replacement rear axle / output shaft / final drive shaft
20-spline ends for positive gear engagement
Fits 139QMB and compatible 50cc/80cc 4-stroke engine codes
SKU: 151-55
Specifications
Total Length: 133mm
Splines: 20 (both ends)
Center Shaft Diameter: 27mm
Smooth End Diameter: 17mm
Thread End Diameter: 16mm
SKU: 151-55
Compatible Engine Codes
Note: There are many different output shafts on the market. Shafts will vary by model to conform to OEM wheel size, single or dual suspension, etc. MEASURE your output shaft prior to ordering to make sure this is compatible.
