A cycling computer is not the most essential accessory for riding. But it allows the cyclist to evaluate himself and compare the results of his achievements with previous ones. A computer for a bicycle can be of two types: wired and wireless, the difference will be in the way the signal is transmitted from the sensor on the spokes to the computer itself. If you decide to buy a bicycle computer, in a set with it you will receive a sensor that is attached to the spokes and to the fork, it is they who, with the set wheel size, read your speed, distance traveled, etc. Basically, all computers have a standard set of functions and differ in the quality of performance.