If your bike is experiencing a speedometer or odometer reading that is significantly inaccurate, this can be a sign of an incorrect component on the bike or damage to the speed sensor assembly.
- For hub-drive bikes: confirm the connections from the display to the motor are all secure and free of dirt and grit. For mid-drive bikes, ensure the connections from the display, motor assembly, and external speed sensor are all secure and free of dirt and grit. Once checked and cleaned, reconnect and retest the function of the bike.
- If the display loses the ability to show a reading for the speed/mileage, this is a common sign that the speed sensor is damaged or malfunctioning. Hub-drive bikes have the speed sensor built into the hub motor so the rear wheel assembly should be replaced. For mid-drive bikes, there is an external speed sensor component. If either the speed sensor/cable or the magnet on the wheel is damaged or missing, the bike will no longer function properly. Replace the damaged or missing component.
- If the speed sensor or rear wheel assembly has already been replaced and the issue persists, replace the display and the inline harness to ensure the path of connection is complete and secure.
- Other variables can be improper components being used on the bike. Since the speed and odometer rely on the rotation of the wheels, changing the wheel size and/or tire size can play a role in affecting the overall readings. Also if an improper display is installed on a bike, the wheel size that is programmed to the display may not match what is actually on the bike. This can also create inaccuracy when the speed and mileage is displayed.
NOTE: A slight variability in mileage/speed may be experienced when compared to the data of a dedicated GPS device like a Garmin or other tracking app.