This part will fit most Chinese Scooters and Mopeds with 49cc 50cc 4-stroke GY6 QMJ/QMI137 engine.
16mm x13mm Roller Weight: 8.5 g
Inner Diameter (drive face): 20mm
Outer Diameter (drive face): 87 mm
Outer gear plate Inner Diameter: 14mm
This part will fit most Chinese Scooters and Mopeds with 49cc 50cc 4-stroke GY6 QMJ/QMI137 engine.
16mm x13mm Roller Weight: 8.5 g
Inner Diameter (drive face): 20mm
Outer Diameter (drive face): 87 mm
Outer gear plate Inner Diameter: 14mm