Why not? I don’t have a speed sensor. My speed comes via GPS on the Edge 510. Obviously that can’t be used inside.
But why can’t the speed at 200W, for example,inside and outside be more closely aligned? I am not saying it should be exact but within 1 mph or so. Not 4 mph difference that it currently shows.
If that’s the case, then just don’t show any speed or distance since its crap anyways. But I really think this is doable.