the little one, just held Radcomputer convinced nearly every cyclist who wants to ride only the most important information's at. Speed / Time / trip meter / travel time the installation is very easy, simply mount the sensor in a wheel spoke and mount the holder on the handlebar A small point of criticism is that the sensor is made more just for round spokes in racing bikes must use a little more power and skill. the setting is typical sigma feasible via the push button on the rear panel, set's time, wheel size and start kilometers. While this is a bit annoying, but still useful, the setting can never change by itself. the function under the cycle is impeccable, the service is easy to reach, and the numbers on trip distance, time, travel time are legible, displaying the speed is displayed on 0.2 km exactly.