Stages magnet-free Cadence sensors fit to your crank arm and rear hub to provide real-time, accelerometer-based cadence data to your cyclometer or phone via ANT+ and Bluetooth Smart.

Description
-Compatible with most crank arms

-Installs/removes in seconds

-IPX7 Water Resistant

-Superlight just 8 grams

-Runtime: 600 hours

-Operating range: 18-200 rpm

-Blue and red LEDs indicate pairing, activation and low battery status