Surprised no one mentions this: according to what I've read, the riding posture on road bikes is more comfortable for long distance, and upright position is better for shorter distance, which have to do with the pressue on the seat.

What I wonder is whether those on road bikes riding long distance feel wrist discomfort or pain from the pressure even though the drop bar allows flexible hand position. Also by looking at some pictures of the riding posture on a road bike such as in post #172 in this thread I wonder if the position does harm to one's digestion?

I've never ridden a road bike but wish I could ride one comfortably.