DUOTRAP DIGITAL SPEEDCADENCE SENSOR Say goodbye to zip ties! The DuoTrap sensor is an ANT+ compatible 2.4GHz wireless sensor that fits directly into the chainstay of certain Trek bicycles for a clean look that preserves aerodynamics and installs in seconds providing both speed and cadence signals.
BONTRAGER SPEEDTRAP DIGITAL SPEED SENSOR SpeedTrap sensors allow you to put a 2.4GHz wireless sensor directly into the fork leg of a compatible Bontrager fork. The result is a clean look that preserves aerodynamics and a sensor that installs in seconds.