Originally Posted by
StanSeven
Even though the 25s felt easier, they weren't any faster. If you check out some of the test data, the difference is extremely small (generally an insignificant amount)
I never said they were faster. I said they were
easier to pedal.
To be clear, I've read the articles and looked at the data, then actually purchased two pair of tires and tried them back to back to see for myself. Vittoria Rubino Pro III Slicks in both 23mm and 25mm. Same bike, same wheels, same pressure, same tubes, same day... Tires were swapped twice just to make sure. My recommendation is to forget the articles and try two pair back to back. There is a noticeable difference in ride quality and pedal effort. That's my experience.
-Tim-