Electric scooter speed controllers must be properly installed the first time. If the polarity of any of the connections is incorrect the speed controller may be damaged during installation. Because damage may occur from an incorrect installation, we do not accept returns or exchanges on speed controllers.

We have speed controllers for Chinese-made electric scooters, bicycles, pocket bikes, go-karts, mini choppers and other electric ride-on vehicles. Speed controllers are sometimes called "control module", "module", "brain box", "brain", "control box", "Voltage controller" or just simply a "controller". Many people looking for a replacement speed controller are unable to find the exact replacement. Our speed controller models are universal, as long as you get one with the same Voltage and within the same Wattage range as the motor that it will be used with. Throttle and speed controller adapting connectors are available on our Connectors page if needed. Wiring direction are available for most of our speed controller models by clicking on the link found at the bottom of the speed controllers description.