PROPERTIES:
Maximum speed: Unlimited
We recommend not exceeding the preset limit of 50 km/h
Speed limit setting: Yes
Display shows: Real-time values
Tuning activation/deactivation:
WALK button
Button combination - + - +
Compatible with:
SyncDrive Pro 2 (85 Nm) + RideControl Go
SyncDrive Sport 2 (75 Nm) + RideControl Dash
Not compatible with motors:
SyncDrive Sport, 70 Nm
SyncDrive Core
SyncDrive Life
SyncDrive (2017-2021), 80 Nm
Not compatible with: SpeedBox App

We do not recommend updating the software of the e-bike

SpeedBox 3.3 Tuning Chip for Giant E-Bikes (2022 Onward)
The SpeedBox 3.3 is a reliable third-generation tuning chip designed specifically for Giant e-bikes equipped with SyncDrive motors (from 2022 onward) and RideControl units. This advanced module removes the factory speed limiter, allowing riders to unlock the full potential of their electric bike while maintaining accurate ride data on the display.

Functionality
Once installed, SpeedBox 3.3 enables your e-bike to display real-time metrics such as:

Maximum and average speed

Daily mileage

Cruising range

Activation is performed directly through the bike’s control unit:

Briefly press the WALK assist button while stationary. The display will show 5.0 km/h (3.1 mph), indicating that tuning is active.

You may adjust the speed limit up to 99 km/h, though it is recommended not to exceed 50 km/h to reduce the risk of error codes.

To deactivate, press the WALK button again while stationary. The display will show 2.5 km/h (1.6 mph), and the limiter will reset to 25 km/h.

For bikes without a WALK button, use the - + - + button combination to toggle the tuning on or off.

Speed Limit Customization
You can fine-tune the maximum speed of electric assistance using the following methods:

Switch modes three levels down, then three levels up to display the current limit.

Adjust by briefly pressing the WALK button or rotating the rear wheel 360°.

Speed limit indicators:

1.5 km/h = 15 km/h

2.0 km/h = 20 km/h

2.5 km/h = 25 km/h

3.0 km/h = 30 km/h

5.0 km/h = 50 km/h

9.9 km/h = 99 km/h

The last displayed value will be saved after five seconds of inactivity.

Post-Ride Protocol
After each ride:

Leave the bike powered on until 0.0 km/h is displayed.

Do not remove the display until the countdown process is complete.

For short stops, keep one foot on the pedal to prevent countdown initiation.

For longer stops, allow at least a partial countdown.

After extended rides, the countdown may take several minutes.

Installation
Installation is straightforward, with color-coded connectors and detailed instructions available. Disassembly is equally simple. If installing on a brand-new bike, ride at least 10 km before activating the tuning.

Compatibility
Compatible with:

SyncDrive Pro 2 (85 Nm) + RideControl Go

SyncDrive Sport 2 (75 Nm) + RideControl Dash

Not compatible with:

SyncDrive Sport (70 Nm)

SyncDrive Core

SyncDrive Life

SyncDrive motors from 2017–2021 (80 Nm)

SpeedBox App

Legal and Safety Notice
Please note that operating a modified electric bike on public roads may be illegal in some countries. The manufacturer assumes no responsibility for damages or legal consequences resulting from the use of SpeedBox products.

Electric bikes equipped with SpeedBox tuning chips:

Must not be used on public roads, bike paths, or public spaces

May only be used on private property and entirely at the rider’s own risk

May have their warranty voided upon installation

Additional recommendations:

Do not update your e-bike’s firmware, as this may cause detection or malfunction

SpeedBox warranty does not cover issues caused by firmware updates

Activate or deactivate tuning only when the bike is stationary

Always wear appropriate protective gear

Do not exceed speeds of 50 km/h; 35 km/h is recommended for optimal safety

SpeedBox 3.3 is the ideal solution for riders seeking unrestricted performance in off-road or private settings. For installation support or compatibility questions, please contact us directly.

Product Fitment