Important to know:

The remaining range is calculated separately for each assistance level. Only the distances travelled in the respective level are included in the calculation!

This can result in significantly different, seemingly implausible values when changing support levels.

If no kilometres have been covered in a support level since the bicycle was switched on, the system uses default values. Only when distances have been covered in this mode does the system gradually adjust the default values of this mode to the actual energy consumption values (depending on topography and user behavour).

However, strange differences can also arise from use. For example, if you ride a longer distance uphill in Eco mode (relatively high power consumption) and then switch to Fly mode when riding downhill, but ride almost exclusively above the assistance level (minimal or no power consumption), you will see a much higher remaining range in Fly mode than in Eco mode.