I'm setting up for the winter (yes it's only October, this is Sweden).
I need to set up a speedometer for my rear wheel while I use the turbo trainer, I have a Garmin Edge 510 with cadence sensor, and wonder can I set this up to feed cadence and speed (with speed taken from the rear wheel) to the Edge head unit whilst on a stationary trainer?
How do I set the edge computer to deal with this (I assume it needs to know to take speed from the sensor and not GPS, and just trying to use it as normal failed).