SpeedBox 1.2 for Shimano (E8000, E7000, E6100, E5000)

The tuning kit manipulates the speed signal without altering the motor's power relative to pedaling speed. This guarantees a smooth motor control without speed limit interruptions. Depending on a tuning kit, some determine when assistance stops, while others remove the restriction entirely for continuous support. However, the achievable speed mostly depends on the eBike model. Achievable speed can be calculated using a simple formula:

Speed = Cadence [rpm] * Wheel circumference [mm] * Front Chainring Teeth / Rear Chainring Teeth * 60 [min/h] / 1.000.000 [mm/km]

The SpeedBox 1.2 tuning chip enables you to suppress the speed limiter on your electric bike. This unlocks the power of the Shimano motor, allowing you to achieve unlimited speed. When in use, the actual speed will appear on your display up to 14 mph (23 km/h).

The manufacturer recommends keeping the maximum speed for Giant models up to 21-22 mph (35 km/h).

If you want to see correct speed and all riding data during your ride, we recommend choosing SpeedBox 1.2 B.Tuning for Shimano - you can see the real values in our SpeedBox App – right on the display of your phone.


This tuning chip can be easily controlled with the LIGHT button. If the lights are off, SpeedBox is activated. The chip can be deactivated by turning on the lights. If your eBike does not have lights or the function is not active, or if you prefer your tuning kit to work independently of the lights, do not connect the red wire during installation. This will keep the tuning always activated.

Please note that the operation of this type of modified electric bikes on public roads may be against the law in some countries. The manufacturer takes no responsibility for damages resulting from the use SpeedBox products. Electric bikes equipped with SpeedBox products are not allowed to be used on public roads, cycling paths and public places. Electric bikes equipped with SpeedBox products can be used exclusively on private property and entirely at one’s own risk.

The use of SpeedBox may void the warranty of your ebike.

We strongly recommend using other safety features and protective gear to prevent injuries in higher speeds.

SpeedBox Products are thoroughly tested and we stand by their quality. SpeedBox provide Life Long warranty to all their Products!

If You have any questions, please do not hesitate to contact us. Thank you for looking! Two Wheels Empire Team

Warranty does not cover damage resulting from eBike software updates. Remove the tuning kit before updating the software. Check with us first to ensure the kit is compatible with your updated eBike. We cannot guarantee that the kit will function the same after updates. Please exercise caution. If your Speedbox tuning kit needs updating due to updated eBike software, please contact us at hi@twowheelsempire.com. Preliminary costs are 49£ + shipping costs.