THE SpeedBox 2.1 for Giant is a second generation unlocking module designed for electric bikes equipped with motors Giant SyncDrive from model years 2017 to 2021. It removes the assistance limit at 25 km/h, allowing assistance up to higher speeds while retaining the correct display of speed and distance on the bike display.
The module works continuously once installed, without requiring manual activation.
Highlights
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Removal of support limit : Eliminates the 25 km/h restriction. 
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Displaying actual data : Current speed, maximum speed, average speed, mileage and range displayed correctly. 
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Automatic activation : The module is permanently activated as soon as the bike is turned on. 
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Simple installation : Original connectors for plug & play installation without modifications. 
Technical description
| Specification | Detail | 
| Type of use | Giant SyncDrive e-bike tuning 2017–2021 (private use recommended) | 
| Engine compatibility | Giant SyncDrive (2017–2021), Yamaha | 
| Activation/Deactivation | Automatic when the bike is turned on | 
| Activation indication | Displays 9.9 km/h briefly | 
| Deactivation indication | Display of 2.5 km/h briefly | 
| Recommended max speed | Up to 60 km/h | 
| Actual speed display | Yes | 
| Correct distance | Yes | 
| Facility | Plug & play with original connectors | 
| Bluetooth version (B.Tuning) | No | 
| Incompatibilities | Not compatible with Giant SyncDrive Pro, ABS systems |