Bontrager DuoTrap S Digital Sensor

Bontrager DuoTrap S Digital Sensor - Bontrager DuoTrap S Digital Sensor Say goodbye to zip ties Bontrager DuoTrap S 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.