170w Upgrade Kit – To fit Revvi 12″ electric balance bikes

170w Upgrade Kit – To fit Revvi 12″ electric balance bikes This kit includes a 170w motor and control unit rated to the motor. The parts are a direct fit to the revvi 12″ bike. This kit significantly increases the acceleration and top speed of your bike. It is also a good idea to purchase a bigger 5.2AH battery if you are running this upgrade as the 2.6ah battery fitted to the 12″ bikes will not run for as long with this motor fitted. Please Note: The 170w motor will give your bike significantly more top speed and acceleration. It is for a advanced riders only. Please make sure the rider is at a level to control a bike with this increased power and speed. It is also important to ride in open spaces for safe riding.