Complete Crankshaft (22 Tooth, Type 2); 139QMB Scooters

This OEM complete crankshaft (22-tooth, type 2) replaces stock equipment on CSC go, go MAX, and Pug scooters and bikes running 139QMB ( 50cc 4-stroke) engines with a 22-tooth oil pump drive. The main bearings are installed. Original Parts For Scooters SKU 151-238 Specifications: Stroke: 41.4mm Overall Length: 254mm Thread Size (tapered side): M10x1.25 Thread Size (spline side): M12x1.25 Bearing Outer Diameter (tapered side): 42mm Bearing Outer Diameter (spline side): 47mm Number of Splines: 26 Number of Teeth (oil pump drive gear): 22 Compatibility: Chicago Scooter Company go Chicago Scooter Company go MAX Chicago Scooter Company Pug50 139QMB-based 50cc / 80cc engines with the following engine codes: 139QMA 139QMB 1P39QMB 1P39QMA-2 YN139QMB JJ1P39QMB 139FMA-2 BD1P39QMB BN139QMB 147QMD Other QMA models Other QMB models Don't see your engine listed? If the engine code includes "QM" or "FM", this product is compatible with your vehicle. About CSC: Chicago Scooter Company embodies the spirit of urban mobility with its innovative and stylish lineup of scooters. Designed for city living, their scooters blend functionality, reliability, and modern design, making them the perfect choice for navigating busy streets. Experience the freedom of effortless commuting and explore the city in style with Chicago Scooter Company.