SpeedBox 3.0 B.Tuning is a tuning module designed for electric bikes fitted with Bafang Max Drive M300 or M400 motors with 3-pin connectors. It removes the 25 km/h assistance limit, allowing assistance up to around 35 km/h, while retaining the correct speed and distance data on the bike's display.
Activation and deactivation can be done via the WALK function, a specific sequence of buttons on the bike, or via the SpeedBox App via Bluetooth, which also allows you to customize some of the module's parameters.
Key Features
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Removal of the 25 km/h assistance limit.
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Flexible activation/deactivation via WALK function, key sequence or Bluetooth application.
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Correct display of speed, distance and range on the bike's display.
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Plug & play installation with original connectors.
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Control and customize settings via the SpeedBox App.
Technical Description
| Specification | Detail |
|---|---|
| Type of Use | Tuning e-bike Bafang Max Drive M300 / M400 (private use recommended) |
| Motor Compatibility | Bafang M300 / M400 with 3-pin connector |
| Screen compatibility | Compatible Bafang screens |
| Activation | WALK function, key sequence ↑↓↑↓, or via SpeedBox App |
| Activation indication | 3.5 km/h display briefly |
| Indication of deactivation | 2.5 km/h display briefly |
| Recommended max. speed | Unlimited (≈ 35 km/h recommended) |
| Actual speed display | Yes |
| Correct distance | Yes, after the countdown at the end of the journey |
| Installation | Plug & play with original connectors |
| Practical notes | Do not switch on/off while riding; leave the bike powered up to 0.0 km/h before switching off. |
| Incompatibilities | Not compatible with standard sensor (not 3-pin), ABS systems |