Originally Posted by
wphamilton
From a decent 60 TPI commuting tire (Prima 2) to a decent 150 TPI road tire (Rubino Pro Slick), same size same pressure, I could immediately feel the difference. Stiff vs supple, sluggish vs lighter. Difference in commute time? Probably none.
This is spot on. I would expect it to feel different but not make any measurable difference in speed or time.
Higher thread count also generally improves grip but at the cost of tread life.
Incidentally, Continental plays a bit of a game with thread count. I believe that if the tire says 330 TPI it's really three layers of 110 TPI.