Wahoo rpm cadence sensorthe wahoo rpm cadence sensor is your sleek little solution for measuring cycling cadence data its wireless magnet less lightweight and easily mounts to your bikes crank arm or to your shoe bluetooth 40 and ant dual band technology allows you to connect to and display data on both smartphones and gps bike computers collecting cadence data has never been this easy features dual band technologywireless connectionsleek lightweight designcadence measurementtwo bike