– Oil pump drive gear 16 teeth.

– Inexpensive replacement for OEM crankshaft.

– Fits 50cc/80cc 4 Stroke GY6/QMB139 Engines.

– Stroke: 41.4mm

– Overall Length: 246mm
– 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
Fitment
All Tao-Tao, Peace, Iceberg, Roketa, Baja, Baccio and many more scooters with 50cc 4 stroke engines. ATM50 , VIP50 etc.