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Bosch Kiox (BES2): switch from mph to km/h (or km/h to mph)
Units are under Settings > My Kiox on the display. One minute, no dealer or app.
Step by step
- Switch the Kiox on.
- On the status screen (press < on the control unit until you reach it), press the select button (centre of the control unit) to open 'Settings'.
- Go to 'My Kiox' and confirm with select.
- Move to 'Units', confirm, choose 'Metric' (km/h, km) or 'Imperial' (mph, mi) and confirm.
- Press < to return to the ride screens. Speed, trip, total and range follow immediately.
Tip: The setting is stored in the display, not the app; if you swap displays between bikes, check it again.
Can't find it?
If 'Units' is missing, update the Kiox via eBike Connect (Bluetooth) or ask a dealer. Units have no effect on the assistance cut-off; that is set in the drive unit.
Frequently asked
Does 'Imperial' change the 25 km/h cut-off?
No, it only changes what is displayed.
Why did my Kiox switch to mph after an update?
Updates can restore defaults. Set Metric again under My Kiox > Units.
Does eBike Connect also show miles now?
The app has its own unit setting under your profile; change it there too if needed.
Manuals and video
- Bosch eBike Help Center: official error-code index
- Bosch eBike downloads: quick start guides and battery guide
- Bosch eBike dealer search (DiagnosticTool readout)
Other Bosch Kiox (BES2) guides
Bosch Kiox (BES2): change the display languageBosch Kiox (BES2): set the time and time formatBosch Kiox (BES2): reset the trip and set automatic trip resetBosch Kiox (BES2): wheel circumference (dealer-set, small correction possible)Bosch Kiox (BES2): change assist modes and what can be customisedBosch Kiox (BES2): activate and use eBike LockBosch Kiox (BES2): set the display brightnessBosch Kiox (BES2): pair with the eBike Connect app via BluetoothBosch Kiox (BES2): update the firmware (display via app, drive unit via dealer)Bosch Kiox (BES2): enable and use walk assistBosch Kiox (BES2): turn the lights on and off, always-on lights
Still stuck? Take a photo of the display and show it to a local e-bike workshop. Bring the bike's system name (e.g. Bosch Performance Line CX) and the exact code; that saves diagnostic time and money.