GPS and accessories

For sharp workouts or simply for outings by bicycle. Wide choice of wired meter, wireless or even GPS. With countless functions such as distance, speed, frequency of cycling, heart rate, time, temperature, GPS position, altitude... This list is not exhaustive. Some of the GPS for bike have mapping of roads or IGN maps; others have only a trace on a blank background. Apart from real computers embedded are the Garmin GPS, Sigma or Mio we also counters from more quiet 5 functions for the outputs.