GY6 150cc Gear Set (15*37)
ITEM# TT-26486
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Description
GY6 150cc Gear Set for 125cc, 150cc, and 169cc Engines
This 15*37 gear set raises the gear ratio by 20% over the factory 13*40 setup, which can help your GY6 engine rev higher and pick up speed. If you are looking through GY6 150cc scooter parts, this is a strong choice for getting more out of your scooter.
Performance Benefits
This gear set is aimed at riders who want quicker acceleration and higher top speed, especially when paired with GY6 big bore kits. The higher ratio gives you a more usable spread of power, which can make everyday riding feel more responsive. This part is intended for off-road use only.
Installation Note
Fitting this gear set calls for a 12-ton hydraulic press, used both to pull the stock counter shaft gear off and to press the new gear onto the shaft. You will need the right tools and some mechanical experience to fit it correctly.
Specifications
- Front Counter Shaft Teeth: 15
- Rear Final Drive Gear Teeth: 37
- Gear Press-On Area: 12.08mm x 19.08mm
- Fits: GY6 150cc engines (157QMJ-based) with the 15*37 gear set, including 125cc, 150cc
Fitment
Fits:
- GY6 150cc (157QMJ)
Where it goes: part #17 on the transmission diagram for the GY6 150cc (157QMJ).
Other versions: For the GY6 150cc 16*36 gear set, see GY6 150cc Gear Set (16*36). For the GY6 16*37 gear set, see GY6 Gear Set (16*37).
Shop more: GY6 150cc Scooter Parts (157QMJ) · GY6 Scooter Parts · Scooter Transmission & Final Drive · Scooter Parts
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