SpeedBox 1.1 B.Tuning Kit for DJI Avinox (M2, M2S)

SpeedBox 1.1 B.Tuning lets you suppress the speed limiter on e-bikes fitted with the DJI Avinox M2 and M2S mid-drive motors. Once activated, the 25 km/h assistance cut-off is removed and the motor keeps pulling.

With the B.Tuning version you can see your real riding values in the SpeedBox Connect app – right on the display of your phone.

The tuning kit manipulates the speed signal without altering the motor's power relative to pedaling speed. This guarantees smooth motor control without speed limit interruptions.

Activate/deactivate the tuning before the ride (when the e-bike is standing still), not during riding!

There are two ways to switch tuning on and off:
- Through the SpeedBox Connect app over Bluetooth
- Using the handlebar buttons in the sequence + − + −

You can also set your own custom speed limit in the app rather than running fully unlimited, plus monitor live ride data and save ride records.

Hide Tuning function: once enabled, tuning can no longer be switched on using the buttons on the e-bike — only via the app.

This is the tuning chip for e-bikes running the DJI Avinox M2 or M2S motor.

Compatible with:
- DJI Avinox M2 motors
- DJI Avinox M2S motors
- All Avinox displays
- SpeedBox Connect app

If your e-bike uses the earlier DJI Avinox M1 motor, you need SpeedBox 1.0 B.Tuning for Avinox instead.

Firmware updates: DJI regularly releases new firmware for Avinox motors, which can affect compatibility or increase the risk of tuning detection. We strongly recommend not installing those updates. One advantage of the B.Tuning version is that the chip itself can be updated over the app — no need to buy a new one — provided your chip carries the Factory Bootloader marking on the back.

Installation is straightforward and uses original connectors, so the chip plugs in properly first time. A printed manual with a wiring diagram is included in the box, and a full video guide is available.

If you are fitting SpeedBox to a brand-new bike, ride at least 10 km before activating the chip.

Installation Guide:

Rules for using derestricted e-bikes vary by country, so check your local legislation before riding. SpeedBox is intended for off-road use only and is used entirely at your own risk. Electric bikes equipped with SpeedBox products are not permitted on public roads, cycle paths or public places, and the manufacturer accepts no liability for damage caused by illegal or improper use.

Installation may void the warranty on your e-bike.

For your safety, use appropriate protective gear and ride with maximum caution at higher speeds.

SpeedBox products are thoroughly tested and carry a Lifetime Warranty from the manufacturer.

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.