SpeedBox 3.1 for Specialized is an unbridling module designed for electric bikes equipped with Specialized Brose motors, including SL models, and TCU/MasterMind control units. It removes the 25 km/h assistance limit, allowing assistance up to higher speeds while maintaining the correct speed and distance display on the bike's screen.
Once installed, the module operates permanently, without the need for manual activation. The B.Tuning version connects the module to the SpeedBox application to customize settings and track statistics.
Highlights
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Remove assistance limit: Eliminates the 25 km/h restriction.
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Correct data display: actual speed, distance and range.
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Automatic activation: works as soon as the bike is switched on.
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Plug & play installation: original connectors, simple installation without modification.
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B.Tuning version available: Bluetooth connection for tuning and monitoring via SpeedBox App.
Technical specifications
| Specification |
Detail |
| Type of use |
Specialized Brose e-bike tuning (private use recommended) |
| Engine compatibility |
Specialized Brose (incl. SL), TCU/MasterMind TCU |
| Activation/Deactivation |
Automatic when the bike is switched on |
| Activation indication |
18 km/h display briefly |
| Indication of deactivation |
Display 25 km/h briefly |
| Recommended max. speed |
Up to 50 km/h |
| Actual speed display |
Yes |
| Correct distance |
Yes |
| Installation |
Plug & play with original connectors |
| Bluetooth version (B.Tuning) |
Yes, connection to SpeedBox application |
| Incompatibilities |
Not compatible with Specialized GEN 4 (3.1/S-Works), Brose S Mag FIT, ABS systems |
