250w Brushless Upgrade Kit – To fit Revvi 12″ and 16″ electric balance bikes

250w Brushless Upgrade Kit – To fit Revvi 12″ and 16″ electric balance bikes This kit includes: 250w brushless motor Motor mounting bracket, Control unit rated to the motor, 2 x Front sprockets 13T and 15T. 2 x Chains for the 13T and 15T sprockets. 47T Rear freewheel sprocket. 3 Speed switch to match the control unit, the bike will have a Slow, Medium and Fast speed setting. The parts are a direct fit to the Revvi 12″ and 16″ bike – Please select bike size. The kit increases the acceleration and torque of the bike. Please note / Warnings: If your bike is already 250W then this will not improve the performance of your bike. This is an upgrade for 12″/16″ bikes with 100w or 170w motors. Check the chassis plate on the bottom of your bike for the motor size. Special tools will be required to remove the freewheel from your wheel to change the sprocket! You can remove it using a vice and punch or a freewheel removal tool. This kit should be fitted by a qualified mechanic/technician, This will make the bike significantly faster with a lot more acceleration. Please make sure the riders ability matches the performance upgrade before use. Revvi Cup Note: This upgrade kit is not legal for use in the 12″ Open class at Revvi cup events. For the Revvi cup events the 170w upgrade kit is allowed!