How do I fix the display on my bike that shows no speed? (HUB MOTORS ONLY, Not Pilot or Vertex Mid-drives)

If your hub-motor Magnum Bike’s display is showing no speed, it can be frustrating when you want to monitor your speed or distance, and the bike will also go to sleep after the time established in your display settings sleep timer.  This guide will help you troubleshoot and fix the issue so you can get back on the road with confidence.

Issue Description

The display on your Magnum e-bike may show no speed due to a problem with the speed sensor connection on the motor. This sensor is essential for transmitting information to the display unit.

Signs of This Issue

• Display shows no speed and doesn't calculate distance. 
• Display goes to sleep after allotted sleep timer counts down.

Basic Troubleshooting Steps

• Locate the motor cable connecting the motor to the controller. Usually, this cable runs along the frame near the motor. If the connection is loose or unplugged, carefully plug it into the controller connection with the arrows and pins aligned.  Turn on the bike and see if the issue was resolved. 

• If the issue is not resolved, the problem may lie with your motor or display.  Take your bike to a Magnum Factory Store or Independent Dealer to have the motor, speed sensor, and display inspected.  A component replacement may be necessary.

Contacting Support

For further assistance, reach out to your local Magnum Bikes authorized dealer or visit one of our flagship stores.  Our expert technicians are ready to help you troubleshoot and resolve your issues to keep you riding longer, farther, and faster.

Visit our website for dealer locations and support resources: https://www.magnumbikes.com/

Additional Tips

• Regularly check all cable connections as part of routine bike maintenance.
• Avoid bending or pulling cables harshly to extend the sensor’s life.
• When cutting zip ties, be careful not to cut the electrical wiring of the bike.