Speedbox Shimano 1.3 Ep8 speed increasing device

Unleash the full potential of your Shimano-powered e-bike with the SpeedBox 1.3. This redesigned tuning chip, featuring all-new hardware and firmware, deactivates the speed limiter for unlimited speed. The function is cleverly controlled by your bike´s lights—simply turn them off to ride without restriction. Installation is made easy with original connectors, but it is essential that your motor has a free E-Tube port. Break free from factory limits and experience the true power of your e-bike. For full data tracking, consider the B.Tuning version