The Garmin Edge series rely on GPS to track your location from point A to point B thereby calculating your speed and distance. Its no different from any other GPS unit which require a clear view of the sky. It does not sense wheel movement, so using any GPS on a trainer will show no movement and using it indoors will give you a bad signal. The sensor on the crank used on the Edge 705 is only for cadence and not speed.
214 views
Usually answered in minutes!
×