Originally Posted by Aladin

I wonder what is gained with the high pressure rubber? I run 90 psi Nashbar's inflated to 100.. they wear great and are IMO the best compromise I have found ride, roll and wear. I ran 120's on a Cannondale R500.... which is about as stiff as you get can...and the ride was tolerable for me-- yet I could feel every variation on the rock in the asphalt. How much faster are they... and do I care? No... their a completely different style, a racing bike.