The SpeedBox 1.4 B.Tuning is the answer for demanding cyclists who want to go further. It allows you to push back the assistance limits of your Bosch SX motor, while keeping perfect visibility of your performance. It’s the ideal tool for outings on private roads or wherever legislation allows. Its installation is both simple and discreet, preserving the original look of your EAB while boosting its capabilities tenfold. It’s the perfect choice for optimising your Bosch SX VAE.
Compatibility
- Designed specifically for 4th generation Bosch Performance Line SX engines (models BDU3142, BDU3143).
- Compatible with EABs equipped with a magnet on the valve (Bosch Rim Magnet) and the latest version of Bosch software.
- Warning: Not compatible with standard magnets or ABS systems.
Features
- Speed override: This module removes the speed limit from the electric assist. Although the speed can be adjusted up to 99 km/h, a maximum speed of 35 km/h is recommended to avoid error codes.
- Bluetooth connectivity and mobile application: connect your VAE to your smartphone via Bluetooth. The SpeedBox application lets you control the tuning, set the speed limit, record and compare your journeys, and access engine diagnostics. It also displays real-time data (actual speed, distance travelled).
- Activation/Deactivation: Tuning can be activated or deactivated via the mobile app or by using the WALK assist function on the control unit of your VAE.
- Security: The SpeedBox application is protected by a PIN code and a service password.
Installation and maintenance
- Installation is simple, using your EAB’s original connectors, making the process straightforward and minimising errors.
- Detailed instructions and videos are provided to guide you step by step.
- The module is easy to disassemble if necessary.
- Crucial advice: It is recommended not to update the firmware of your EAB to reduce the risk of detection of tuning. Using a modified EAB on public roads may be illegal and void the manufacturer’s warranty. This product is intended for use on private property and at your own risk.
How it works
SpeedBox 1.4 B.Tuning intelligently interplays itself in your EAB’s system to modify the speed sensor signal before it reaches the motor. This allows the electric assistance to remain active even when you exceed the standard speed limit, as if your VAE were “seeing” a lower speed than it actually is. Integrated Bluetooth technology ensures smooth communication with the SpeedBox application, giving you granular control over settings and instant access to your performance data. This system guarantees an enhanced riding experience, while providing you with accurate information.
Assembly
Assembly of the SpeedBox 1.4 B.Tuning is designed to be accessible to everyone, without requiring specific tools or advanced technical skills. The kit uses your EAB’s original connectors, simplifying installation and considerably reducing the risk of error. It usually takes just a few minutes to connect the module. Comprehensive guides and video tutorials are available to support you every step of the way, ensuring that installation is quick and safe. So you’ll be ready to explore the new performance of your EAB in no time.