This Speed Sensor Magnet is a replacement part for speed measurement on Specialized Turbo e-bikes equipped with CentreLock brake rotors. It is integrated into an internally toothed lockring, which is used on the rotor of the rear wheel hub. It is fitted as standard on Vado, Como and Creo e-bikes. You also need it for other turbo bikes if you want to convert to CentreLock.
