Secondary transmission gear kit NARAKU 16/37 +25% GY6 125/150cc 152/157QMI

Fitting a big bore kit does not always give the expected increase in top-end speed. It certainly improves acceleration, but not top-end speed. Why?
This is often due to the short gear ratios on your scooter. If this is the case, the only way to combat it is by changing the gears to new, longer ones.
Here we have a longer version of the gears from well-known performance manufacturer Naraku. These gears are 25% longer than the originals (16-37 teeth), providing higher top-end speed without losing acceleration power.
These gears fit all Chinese 125 and 150cc GY6 engines (152/157QMI).
Please note: There are variants among imported Chinese scooters, so we strongly recommend removing the old gears and checking the number of teeth before purchase.