Speedbox Brose 3.1 speed increasing device

Unleash the full potential of your e-bike with the SpeedBox 3.1 for Brose. This smart, third-generation tuning chip removes the 25 km/h speed limiter, allowing you to ride at your true pace—40, 50, or even over 60 km/h. Designed for Brose, Specialized, and SRAM Powertrain motors, activation is simple via the WALK assist function or a button combination. Your display always shows your real speed, and you can even set a custom maximum speed limit for a tailored ride. Experience unlimited riding freedom and ride without restrictions