Originally Posted by
jiangshi
Do the 27c tires fit on the rear without deflating them to clear the seat tube? My Professional is a 54.5, and I have to deflate the tire to get anything larger than a 23c into the dropouts.
Also, is there a reason you run at such high psi? I use tubulars so I can run them at lower psi, to help smooth out the rough roads where I am. No pinch flats with tubulars.
Yes, no clearance issue. I have to rotate the RD all the way back. This is true for most of the shorter wheel base rides.
The Conti's measured 22 mm in width as are the Vittoria's. The Challenge tires measure 26mm and clears easily.
I ran them at 150 based on the 170 max on the tires. The ride was not as harsh as I expected. The pressure run on the clinchers of the Pinarello are 135 front and 140 rear. They are more compliant at this pressure then at 120/115. Strange experience.
Obviously these are tubulars. I am in the process of converting everything to tubulars that are fast road bikes (Italians)!
I may save the Challenge set for another ride, Trek 760 or the 610. I don't mind running 21, 22 or 23's. Afraid to experience a plush ride!