Originally Posted by
vasuvius
If the 25mm tire measures the same as a 23mm tire@23mm, can I still run a little lower pressure? Doesn't make sense to me.
I'm trying it though.
I used to run 100psi on the 4000s 23mm tires
Trying 95 psi on the GP 4 seasons. Feels a little softer but the tire is still new. Might go further down to 90psi
I only weigh 146 lbs and my backpack is under 5 lbs, so, I don't think I need to pump up the tires more.
Only time will tell.
I don't set pressure according to the size printed on the tire, I measure width with a caliper and set pressure accordingly. A true 25 can be run at a lower pressure than a tire that measures 23mm.