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.
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.
California Prop 65 Warning: www.p65warnings.ca.gov
