SpeedBox 3.1 B.Tuning E-Bike Chip for Brose SRAM Powertrain Bluetooth

E-Bike tuning kit for Brose and Specialized motors, including the SRAM Powertrain unit. Unlimited speed. Speed limit settings. Real speed. Bluetooth for connection with the SpeedBox App.

Product details

• E-Bike tuning kit for Brose and Specialized motors, including the SRAM Powertrain unit. Unlimited speed. Speed limit settings. Real speed. Bluetooth for connection with the SpeedBox App.
• Tuning activation/deactivation: SpeedBox App WALK function or Button combination - + - + Compatible with motors: Brose SPECIALIZED Brose S-MAG, S, T, C, T-ALU SRAM Powertrain by Brose
• Not compatible with: Motors Brose S Mag FIT Motors BROSE Specialized SL (For SL models use SpeedBox 3.0 for Specialized) Enviolo Automatiq Not compatible with e-bikes without connector in the display port (usually there is just a dummy plug instead)
• You can set own speed limit in SpeedBox App or by switching modes - - - + + + (TURBO - TRAIL - ECO - OFF - ECO - TRAIL – TURBO). An actual speed limit will be displayed after that. Briefly activate the WALK function or by turn the rear wheel 360°. The speed will always increase by 5 km/h. The last displayed limit will be saved after 5 seconds of inactivity.
• E-Bikes with SRAM Powertrain unit Briefly activate/deactivate in SpeedBox App or by the WALK function or switch between two assistance modes (+ - + -). Activation → the display will show a battery value of 99%, which corresponds to a max speed of 99 km/h. Deactivation → battery value of 25% = speed limit of 25 km/h.

Important compatibility check

Verify the exact motor generation, connector type, display and magnet configuration before ordering. Product variants that look similar may not be interchangeable.

Installation and use

Follow the included manual and the product-specific installation instructions. Do not update the e-bike firmware unless compatibility has been confirmed.

Legal and safety notice

Rules for modified or derestricted e-bikes vary by location. This product is intended for use outside public roads where permitted. Check local law before use. Installation may affect the e-bike warranty. Use suitable protective equipment and ride responsibly.