Originally Posted by
PaulRivers
Yeah, but usually the restriction is that a road cleat is to big to fit on a mountain shoe with tread (the tread takes up to much space), so you can't have tread + road cleat, it's physically impossible.
Apparently they have no tread. Which means the cleats are never recessed, and the benefit of mountain systems are gone. Still, they're compatible with either, so I guess something like this would work if you had SPDs on a mountain bike and were planning to get a pedal-based power meter for a road bike, or something like that.
