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 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 does not provide waterproof protection 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 defective instead.

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

Error code 30 indicates a defective 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 cord. If the charger still does not work, it may need to be repaired or replaced. Do not try to open the charger yourself. Even when the charger is unplugged, you could still be injured by an electric shock.

Make sure the wall outlet is working. Check the charger's power cord. If the charger still does not work, it may need to be repaired or replaced. Do not try to open the charger yourself. Even when the charger is unplugged, 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 experience 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 first replacing the computer. Simply order the spare part “Replacement Computer”. Once you receive it, replace the current computer with the new one and check whether this resolves the problem.

Either the socket or the circuit board may be defective. To inspect 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 could also be related to the PCB on the bike. Therefore, we would need the entire bike for the repair. It is very important that you include the battery key when sending it in for repair.

Unfortunately, we cannot provide replacement keys because we do not have them in stock. In such cases, a new lock needs to 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 status.