Pedelec senses crank rotation with its sensor and magnetic ring. The electric bicycle motor turns on with crank rotation. Upgrade accessory allows rider to change mode (low, med. & high) for ease of pedaling.
Hall sensors are placed strategically around the motor windings. They sense rotation of motor for better efficiency and torque.
The brakes safety is a micro switch inside the brake housing that closes when the brakes are applied. This completes a signal to the main controller that shuts off the power to the motor.