Naraku racing 10% gear up kit for GY6 engine mopeds.
Fits 139QMB/ 139QMA engine 50cc 4-stroke Chinese scooters such as Baotian etc.

This kit comes complete with all secondary gears.

When you fit a bigger bore kit to your 4-stroke Chinese moped the extra power will allow you to accelerate faster but there is no real increase in top speed because the gearing is still the same. This kit increases the final gearing by 10% and allows you to reach a higher top speed which is otherwise not possible.
Please note it is unlikely a standard scooter will make enough power to achieve this extra top speed and this kit is therefore only recommended for tuned mopeds.

For use with moped with standard gearing of either 52/16 teeth or 51/15 teeth (virtually all of them!)

Also fits Peugeot V-Clic

*Please note this kit no longer include the gasket*

Naraku NK900.57