Do you have an electric bike with a  Giant Yamaha SyncDrive? Does the motor automatically switch off at 25 km/h? SpeedBox will help you with that. This gadget  suppresses the speed limiter. The maximum speed of your electric bike will only be limited by your pedalling rate.

SpeedBox2 are the newest versions of our tuning kits. The speed limiter is suppressed and all the values on the display are presented in actual values.

Installing the SpeedBox will not damage any part of the motor or ebike, we only use original connectors for our products!

It is very easy to install the SpeedBox. The installation will be a breeze with the help of this video.

Not sure of which type of drive you have? Then please click on your motor and display: