Revvi 12" 170w Upgrade Kit - To Fit Revvi 12" Electric Balance Bikes

The parts are a direct fit to the revvi 12" bike. This kit significantly increases the acceleration and top speed of your bike.
 
The Revvi 12" 170w Upgrade Kit significantly increases the acceleration and top speed of the Revvi 12" electric balance bike. To fit the kit, you'll need to remove the old motor and controller and install the new 170w motor and controller. Special tools may be required to remove the freewheel, and it's recommended to have the work done by a qualified mechanic due to the complexity of the upgrade. 
Detailed steps and considerations:
Identify the motor size: Check the chassis plate on the bottom of your bike to confirm it has a 100w or 170w motor, as this kit is an upgrade for those models. Prepare the bike: Flip the bike upside down to access the motor and battery compartment. Remove the old motor: You'll need to remove the old motor and controller from the bike. This may involve removing the battery plate and a rubber bung that protects the speed settings. Install the new motor: Install the new 170w motor and controller. Reinstall components: Reinstall the battery plate and rubber bung. Adjust speed settings: If necessary, adjust the speed settings to your preference, typically with a switch inside the bung. Test the bike: Ensure the new motor is functioning correctly and the speed settings are as desired. Consider the battery: For optimal performance, especially with the increased power, consider using a larger 5.2AH battery, as the original 2.6AH battery may not last as long with the upgraded motor. 
Important notes:
The upgrade can make the bike significantly faster and improve acceleration. 
Ensure the rider's ability is suitable for the increased performance. 
A qualified mechanic should perform the upgrade, as special tools and technical expertise may be needed