GY6 125cc/150cc Engines Upgear Set 16x38
ITEM# TT-26482
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Description
GY6 125cc/150cc Upgear Gear Set for Chinese Scooters
This GY6 125cc/150cc upgear set uses a 16x38 gear ratio to help your engine perform better. Compared with the standard 13x40 gear set, it gives a 23% increase, which can help with top speed and a wider rev range. It is one of the GY6 150cc scooter parts that can noticeably improve a big bore setup. The kit contains both the countershaft gear and the final drive gear, so it is a good upgrade choice for your scooter.
Installation Needs
Fitting this upgear set calls for a 12-ton hydraulic press. You need the press to take off the original countershaft gear and to press the new one onto the countershaft. Because the job is fairly involved, getting professional help is strongly advised to make sure it performs as it should.
Performance Gains
This set moves the power band toward higher speeds, so it suits riders who want more output from their GY6 engine. The new ratios provide a smoother acceleration curve, which adds to how the scooter rides overall.
Specs
- Ratio: 16x38 (23% upgear over stock 13x40)
- Front Counter Shaft Teeth: 16
- Counter Shaft Dimensions: Spline Length: 24mm, Outer Diameter: 31.1mm, Overall Length: 60mm
- Rear Final Drive Gear Teeth: 38
- Fits: GY6 150cc (157QMJ) engines, and 157QMJ-based 125cc/169cc engines by engine code
Compatibility
Works with:
- GY6 150cc (157QMJ)
- 157QMJ-based 125cc, 150cc and 169cc engines (codes 157QMJ, 161QMK, 152QMI, 1P61QMK, YN1P57QMJ, 1P52FMI, 154FMI, JJ157QMJ, 1P57QMJ, BN157QMJ, BN161QMK-A, other QMJ/QMK/QMI)
Choosing the right set: Check the engine code on your motor and compare it with the codes above. The set needs a 12-ton hydraulic press for fitting.
Location in the engine: Part #17 on the transmission diagram for the GY6 150cc (157QMJ).
Alternative version: For a different ratio on GY6 125/150cc scooters, see the GY6 125/150cc Scooter 15/36 Upgear Set.
Browse further: GY6 150cc Scooter Parts (157QMJ) · GY6 Scooter Parts · Scooter Engines & Engine Parts · Scooter Parts
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