Magnetic Resistance in Exercise Bikes – How It Works and Common Failures
Learn how your exercise bike's magnetic resistance works. Our guide helps you troubleshoot common failures like a faulty motor, bad controller, or console issues.
How Does Magnetic Resistance Work?
A simple explanation of eddy currents, showing how moving a set of magnets closer to the metal flywheel creates a smooth, silent braking force without any physical contact.
Failure Point 1: The Resistance Motor (Servo)
In most bikes, a small motor moves the magnets. If this motor fails or its wiring becomes disconnected, the resistance will be stuck on one level.
Failure Point 2: The Control Cable
In simpler magnetic bikes, a physical cable connects the resistance knob to the magnet assembly. This cable can stretch, snap, or become disconnected.
Failure Point 3: The Controller and Console
If the console buttons or the internal control board fail, the signal to change resistance may never be sent to the motor.