GY6 50cc (139QMB) Pulley
ITEM# TT-26684
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Description
GY6 50cc Pulley for 50cc Scooters
This pulley is made for scooters running the 139QMB engine. It controls how the automatic transmission engages, which affects both how quickly the scooter pulls away and how fast it can go. As one of the core GY6 50cc scooter parts, it has a real effect on how the ride feels. Swapping it out can bring back lost power and quick response.
What This Part Does
The variator and roller weights inside this pulley set how well the scooter gets moving and how high it can climb in speed. Worn or damaged rollers often lead to slow takeoff and a lower top speed. The roller weight you pick can tilt the balance toward faster acceleration or better cruising speed, depending on how you ride.
Specifications
- Position: Transmission
- Fits: GY6 50cc (139QMB) engine on CSC Go Max transmission
Fitment
Fits:
- CSC Go Max (GY6 50cc, 139QMB engine)
How to choose: Check the engine code stamped on the engine case or its label. It should read 139QMB.
Where it goes: Refer to part #8 on the CSC Go Max transmission diagram.
Also offered: PTFE-Coated Variator Pulley for GY6 50cc (139QMB), 50cc (PTFE-coated, Golden Performance variator).
Shop more: GY6 50cc Scooter Parts (139QMB) · GY6 Scooter Parts · Scooter Variators & Roller Weights · Scooter Parts
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