SpeedBox :: SpeedBox Tuning, We produce products for suppressing the speed limiter of electric bikes equipped with a mid drive made by BOSCH, YAMAHA, GIANT, SHIMANO STEPS and BAFANG.
SpeedBox products allow you to utilize 100% of your E-bike’s potential. This gadget suppresses the speed limiter. The maximum speed of your electric bike will only be limited by your pedalling rate.