If 25 km/h is not fast enough for you
Our popular and tried-and-tested tuning solution to remove the 25 km/h limit for e-bikes with motors from
Bafang, Bosch, Brose, Fazua, Giant, Impulse, Panasonic, Pendix, Polini, Shimano, Specialized, TQ, Yamaha
The performance of the motor remains untouched. But the speed limit is gone. Your legs and physics are the limit.
Slide the badassBox onto the speed sensor, move the spoke magnet. Tuned in no time - and back to original condition just as quickly.
There is no electrical contact with the motor, battery or display - everything remains as it is.
We know our business. We are reachable. We never leave our customers out in the cold.
We are developing and manufacturing the badassBox in Germany since 2013.