Originally Posted by
Craptacular8
I thought I'd used this as a reference before, but perhaps not. I run 700x32 at around 45-50 pounds on pavement, 700x30 50psi, 700x28 55-60, and 700x 25 at 60-65. My 700x42 RH tires on gravel are typically 30-34 pounds. I rarely put them above that for pavement...maybe I should try, lol, but seldom ride a pavement only ride on that bike anymore. I weight in the 150 range.
I just read an article on one of the pro teams that did the ParisRobaix.
They used 50F/65R with 30mm tires (for what is it worth)
Originally Posted by
Phatman
Man, that Silca calculator seems way off for me. The front pressure seems too high and the rear seems too low. It recommended 44F/46R for 100% road on 40mm tires, but for that I'm at ~40F/60R. I'll drop to 35F/50R if I'm on mostly gravel, and I'll adjust the pressures somewhere in between if I'm mixing it up.
40/60 makes sense as the weight distribution is typically 40/60
I wonder if most people realize this?
often, when I ride through a damp spot (or anything that leaves a mark on the tire), I make sure the damp spot on my tire is the same width on the front tire as it is the back tire. Realistically, the front tire needs a LOT less pressure than the rear to get the same tire drop (or width of the tread in contact with the pavement).
your numbers look right on.