Bicycle E-Cable for Bafang/8FUN Motor Parts Gear Sensor USB Programming Cable Hydraulic Brake Sensor Display 5PIN Brake 3pin 1T4 1T2 -- Introduction and operation of programming line buttons: Press 1 time in a row: wheel diameter 29 inch 60 KM/H -2330 mm Press 2 times in a row: wheel diameter 27.5 inch 60 KM/H -2240 mm Press 3 times in a row: wheel diameter 26 inch 60 KM/H H -2100mm Press 4 times in a row: wheel diameter 20 inch 60KM/H -1550mm Press 5 times in a row: wheel diameter 27.5 inch 25KM/H -2240mm If there is a 25 error code after connecting, just press the module button to return to normal. For some models, when the circle diameter setting is switched, the display screen circle diameter size does not change. At this point you must exit the setting and return to the home page of the display screen to re-enter the setting. Then you can see the set wheel diameter.Feature:1. Speed extender: This is a speed sensor extender for electric bikes that require a longer distance to install.2. 3pin female male: 3pin female male, perfectly matched with Bafang speed sensor, with excellent performance.3. Two lengths available: with advanced production technology, it is available in 100cm or 180cm lengths to meet your different needs.4. Suitable scene: suitable for Bafang middle drive motor BBS01 BBS02 BBHD speed sensor extension test.5. High-quality materials: Made of high-quality plastic + rubber, it is durable, wear-resistant and has a long service life. Specification: Item type: Speed sensor extension Material: Plastic + rubber Connector type: 3 Pin Female Male Package list: 1 x Speed sensor extension