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.
- Compatible with most crank arms
- Installs/removes in seconds
- IPX7 Water-resistant
- Super light—just 8 grams
- Runtime: 600 hours
- Operating range: 18-200 rpm
- Blue and red LEDs indicate pairing, activation, and low battery status