Clutch-Side Drive Shaft (GY6 50cc 139QMB / 139QMA)

This clutch-side driveshaft is designed for GY6 50cc 4-stroke 139QMB and 139QMA engines. It supports the clutch and torque corrector and efficiently transmits power to the gearbox.

Manufactured to original dimensions, it is an excellent solution for replacing a worn or damaged shaft during a transmission or engine overhaul.

Before ordering, compare the dimensions of your original shaft, as several versions exist depending on scooter models.

Technical specifications:

• Type: Clutch-side driveshaft
• Compatible: GY6 50cc 139QMB / 139QMA
• Overall length: 155 mm
• Number of teeth: 16
• Number of splines: 22
• Thread: M10 x 1.25

Common terms:
drive shaft, clutch shaft, transmission shaft, CVT shaft.