Dimensional details of this ebike PAS sensor. The black plastic disc diameter: 65mm, 3mm thick. The disc hole is about 15mm. The metal ring inner diameter: 35mm. Cable length: 115CM.
Pedal-assist is a system on an electric bike that gives you an easier time riding. It is common for most electric e-bikes. Pedal-assist offers more power to your pedal strokes on an electric bike. It’s used to extend range, to help on hills and harsh terrain, and to allow you to go faster.
This e-bike pedal assist sensor, known as PAS, is an electric bike speed sensor, which is a high-tech component. It uses a dual magnetic Hall elastic angle difference circuit to detect dynamic torque, convert it into a DC signal, and send it to the controller. It can assist with 1:1 power,then provides constant and smooth pedal motor power and makes your cycling easier and funnier.
Features: According to the speed of the foot pedal intelligent identification of power, more lightweight/power saving during riding. The ebike pedal sensor 3 pin can extend the battery life, improve the vehicle mileage. Avoide battery damage caused by high current discharge.
The fitting of this ebike pedal assist sensor 12 magnets replacement is easy, assuming you have tolhe tools/know-how to remove a crank and expose the bottom bracket axle.