Bringing together the brightness and 180 degree visibility of the Rapid range, the Cateye Rapid X2 Kinetic light adds an additional dimension. With an integrated accelerometer to detect the movement of the rider, the beam will automatically change from flashing mode (10 Lumens) to constant “Burst” mode (50 Lumens) for 2.5 secs under sudden deceleration. Make your presence known with the Rapid Kinetic X2.