Why the differences in style clipless pedals in road bikes vs MTB? Do the larger cleat for the road bike style offer better performance or comfort for road bike use? I know the road show has a much stiffer sole on the shoe. Does that stiff sole drive a different cleat?
I currently use a Shimano SPD MTB style shoe and clip on my road bike because the MTB shoe is easier to walk in when I am off the bike. I am getting ready to get new shoes (and pedals?) so I am curious about the reasons for the differences.