9T-70T Sprocket kit – To fit Revvi 16″ electric balance bikes

9T-70T Sprocket kit

Revvi 16″ bikes where originally fitted with an 11t front sprocket and 57T rear sprocket. This kit changes this to a 9T front sprocket and 70T rear sprocket. This will give your bike more acceleration low down but less top speed.

The kit includes:

-9T front sprocket with washer and Nut

-70T Rear sprocket


-Chain guard

Out of stock