the Magnetic Wheel Speed Sensor is designed to be mounted to the spindle or hub carrier. The trigger magnet (included) mounts to the wheel, wheel hub, or brake rotor to pass in front of the sensor as the wheel rotates.
This sensor has the 719 (four-pin plastic push-on type) connector to connect to the MyChron3 Plus or Gold Auto dashes, any AiM MXL series dash, or any EVO3 series data logger. The MyChron3 XG-Log requires a 712-719 patch cable (Part No. MC-210). The EVO4 requires either the MC-210 patch cable or the y- cable for duel speed sensors.