BBB CadenceMagnet Crank Magnet

Big gear high cadence!
If you want to keep track of as much data as possible, the SmartCadence is one you can't miss. and the CadenceMagnet is his biggest friend. Make sure you keep the correct cadence to train your body the way you want it. Keep control over all the aspects of your ride. The only thing you have to do is keep those legs rolling!
FEATURES
Cadence magnet usable with any sensor.
Rubber tape for long life.
It leaves no traces on the handles.