1. Switch between displays = Press the middle button
2. Switch on = Press and hold the middle button
3. Switch assistance on/off = Press the + or - button, levels 0 to 5.

4. Switch on the light = Press and hold the + button

5. Starting aid = Press and hold the - button

6. QR code for the BikeWiseApp = Press and hold the + and - buttons, then select "Connect to App"

7. Trip Reset = Press and hold the + and - buttons, then select "Display Settings" and then Trip Reset; since 2023, the On/Off button and the + button must be pressed and held simultaneously until the counter reaches 0.

Do not immerse the device in water or clean it with pressurized water. Clean the device with a soft cloth dampened with water only. Do not use cleaning products.
The USB port is not waterproof when exposed. If riding in the rain, an external device must be connected and the USB cap must be fully closed and sealed.

Error codes 21, 22, and 23 indicate problems with the motor or connection issues with the motor, possibly due to a faulty cable.

Error 25 indicates a problem with one of the brake levers. To find out which brake lever is affected, proceed as follows: First disconnect the plug from one brake lever and check whether the error is still displayed. If the error disappears, the problem is with the disconnected brake lever. If the error is still displayed, the other brake lever is faulty.

This error message indicates that the battery is discharged; simply recharge it.

Error code 30 indicates a faulty display, a faulty cable connection, or a faulty cable.

First, check whether the toggle switch on the underside of the battery is set to "On". Make sure the power outlet is working. Check the charger’s power cable. If the charger still does not work, it may need to be repaired or replaced. Do not try to open the charger yourself. Even if the charger is not plugged in, you could still be injured by an electric shock.

Make sure the wall outlet is working. Check the charger’s power cable. If the charger still does not work, it may need to be repaired or replaced. Do not try to open the charger yourself. Even if the charger is not plugged in, you could still be injured by an electric shock.

The battery is fully charged.

You can replace the display. Spare part: BW_BXB55_01

First, check whether the toggle switch on the underside of the battery is set to "On". If you are experiencing problems with the device, the cause could be either the mainboard system (PCB) or the computer. To help you as quickly as possible, we recommend replacing the computer as a first step. Simply order the replacement part “Replacement Computer”. Once it arrives, you can replace the current computer with the new one and check whether this resolves the problem.

It is possible that either the socket or the circuit board is faulty. To check this more closely, we only need the component with the socket (part no. 18)

This is caused by loose spokes. Loose spokes should be tightened at a bicycle repair shop, as this is part of regular maintenance.

First, check whether the toggle switch on the underside of the battery is set to "On". Unfortunately, this may also be related to the PCB on the bike. Therefore, we would need the entire bike for the repair. It is very important to include the battery key when sending it in for repair.

Unfortunately, we cannot provide replacement keys, as we do not have them in stock. In such cases, a new lock must be installed.

The BXB55 batteries have a four-bar indicator to show the charge level: when fully charged, three bars light up green, while one bar always remains red. This is the correct operating state.