Originally Posted by
PaulRivers
I am genuinely confused - you're saying you have a pair of road shoes with no tread, but you ride with spd clips with them? That's the only way I can imagine that you could possibly use both mountain and road pedals on the same shoe.
Shimano makes some shoes that have both a two-hole and three-hole pattern in the bottom. I can't tell you much more than that, but I got a pair of bike shoes a few weeks ago, when REI ran their 20 % off coupon, and saw a few pairs of shoes that work with road or mountain cleats.