Originally Posted by zacster

My Wahoo sensors has a rubber case that is zip tied to the crankarm. The actual unit comes out easily enough. It wouldn't be that hard to charge it attached to the bike either. My Assioma pedals charge that way, and the pedals also act as a cadence sensor. I split the unit up with the cadence on my commuter bike and the speed sensor mostly on my road bike. The speed sensor goes on and off easily too.