Exercise Bike Speed Sensor Not Working – Causes and Solutions

If your exercise bike shows no speed or an error code like E2, the speed sensor is the likely culprit. Learn to diagnose, clean, and align it with our guide.

What Does the Speed Sensor Do?

The speed sensor provides critical feedback (RPM) to the console. Without this signal, the console won't display speed, distance, or calories burned.

Locating the Speed Sensor

Most bikes use a magnetic reed switch mounted on the frame, which is triggered by a magnet on the flywheel. We show you how to find both.

Common Causes of Failure

The most common issues are the magnet falling off the flywheel, the sensor being knocked out of alignment, a dirty sensor, or a broken wire.

Troubleshooting and Repair

A step-by-step guide to checking the magnet, adjusting the sensor gap (typically 1-3mm), and inspecting the wiring to the console.