Originally Posted by
TruthBomb
Oh, no.
SPDs were introduced as a mountain bike specific pedal/cleat combo (737 in 1990).
Of course any pedal/cleat combo can be used on the road but the origin of SPDs is indisputable.
Well can't you provide some proof when you do your name thing?
But I looked a little, didn't find anything definitive either way. So I'll stop stating that because Shimano may have needed a new cleat to get them into that emerging market.
But still I hate saying you can't use something on a road bike because it does not say or was not marketed for road. Particularly pedals and shoes.