Bontrager DuoTrap Digital Speed/Cadence in frame Sensor. Used but like new condition. $74.99 plus tax new. Private sale, no Tax. For Trek Bikes sold after approx. 2006. Includes crankset magnet and wheel spoke magnet.
Bontrager DuoTrap is the integrated sensor that wirelessly transmits ANT+ and Bluetooth® Smart signals to your computer or phone. The easy-to-use sensor installs in seconds and fits directly into the chainstay of select Trek bicycles for a clean look and preserved aerodynamics.
ANT+ 2.4 GHz and Bluetooth® Smart wireless digital speed and cadence sensor
ANT+ and Bluetooth® Smart allow simultaneous use of Trip 300 and smartphone
For use with all ANT+ and Bluetooth® Smart wireless technology enabled devices
Visit thisisant.com for a complete list of compatible devices
Visit bluetooth.com for a complete list of compatible devices