Description：
1. Product: After installation, connect the controller and adjust the displayed gear, it can save energy for you when pedaling and provide stable pedal motor power.
2. Material: Made of high-quality PC material, it is durable, will not wear easily, and has a long service life.
3. Compared with the traditional separate sensor, the concentric movement of the magnetic disk and the magnetic induction element is realized, the sensing sensitivity is high, and the signal is stable.
4. Installation: easy and fast installation.