For spin bike

• Sensor is mounted on the stationary bike.
• Magnets are attached to the weighted flywheel.

For upright bike & Recumbent bike & Air Bike

• Sensor is attached to the stationary crank arm.
• Magnets are attached to the outside mechanism close to the sensor.

For bike
(with bike trainer stand)

• Sensor is attached on the chain stay.
• Magnet is attached on wheel spoke.