Secondary transmission gear kit NARAKU 17/36 +31% for GY6 125/150cc 152/157QMI

Fitting a big bore kit does not always give the expected increased 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 you find this is the case, the only way to combat this 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 31% longer than the original ones (17/36 teeth), providing higher top-end speed without losing acceleration power.
These gears fit all Chinese 125 and 150cc GY6 engines (152/157QMI).
This gear-up kit is designed for use with the 160cc cylinder kit.
Please note: There are variants within imported Chinese scooters, so we strongly recommend removing the old gears and counting the number of teeth before purchase.