Bafang shift sensor, ensuring smooth and precise gear shifting by temporarily cutting motor power during shifts and enhance performance. - Function: Cut Power During Gear Shifting- Connector: Three Pin Yellow- Material: ABS- Length: 24cm- Signal Output: Pulse duration 0.5s- The sensor is patented which can detect the action when rider shifted the gear on eBike- It can help a rider avoid some problems like chain or derailleur damaged, also can bring some smooth shifting feeling to the rider, it can widely be used for middle motor drive system- Item Weight: 27.2 g- Product Dimensions: 4.1 x 1.5 x 1 cm- Manufacturer reference: gear sensor- Color: gear sensor- Height: 1 centimeter- Length: 4.10 centimeters- Width: 1.50 centimeters- Batteries Included: No- Brand Name: BAFANG Install Videos: Shift Sensor Installation (Front of bike) Shift Sensor Installation (Rear of bike)