Quote Originally Posted by SadieKate View Post
Why do people think that bike tires should be inflated to the consistency of concrete? If you do, go back to using iron and wood wheels.
Higher pressure tires = less rolling resistance = faster, easier to pedal.

But then again in mountain biking, less pressure lets the tires grip the ground surface better, and so you get more traction in the gnarly places. But there's a tradeoff... in this past weekend's Leadville 100 MTB rance, Lance Armstrong was running 26" tubeless tires at ~25 psi, but by the end of the race the back tire was pert near all the way flat. Same thing happened to last year's winner, Dave Wiens, with a similar setup in last year's race. There is such a thing as "too much squish."

Tom