I was thinking the same thing (about being able to run faster) as I trudged up the hills (yes, hills, NOT mountains) yesterday.

I used to live in NYC and in Central Park there would be groups of rollerbladers who basically looked and acted like cyclists. They had matching jerseys, aero helmets, did pace lines...and I'm sure they could kick my butt on a bike any day of the week!

I should practice clipping out and stopping on inclines. Once in Central Park, I was running and a guy on a bike was alongside me. We were going up the infamous Harlem Hill and all of a sudden he just tipped over. I'm assuming he lost his momentum and fell over. I ran over to him to help. Poor guy still had two feet clipped in and couldn't get out. Not having a bike I didn't know how to help him get his feet out. Luckily someone else who did was nearby and helped him out.