So, will a 145-lb rider really not flat 700 x 23 tires (vittoria rubino pro) at 100psi?

I've always inflated 'em to "max," which is 125, for no real reason. Is there any benefit, other than the possible avoidance of pinch flats, to running this high of pressure? Any other disadvantage to the lower psi?

So, will a 145-lb rider really not flat 700 x 23 tires (vittoria rubino pro) at 100psi?

I've always inflated 'em to "max," which is 125, for no real reason. Is there any benefit, other than the possible avoidance of pinch flats, to running this high of pressure? Any other disadvantage to the lower psi?

I weigh 170-195, depending on the dieting, and run my tires routinely at 90-95 psi. It's more comfortable, never pinched. roadbikerider.com has a good discussion of this.

(knock on wood)

I weigh around 148lbs and I run my tires at no more than 100psi.

The pinch flat story is a bit of a myth.

So, will a 145-lb rider really not flat 700 x 23 tires (vittoria rubino pro) at 100psi?

I've always inflated 'em to "max," which is 125, for no real reason. Is there any benefit, other than the possible avoidance of pinch flats, to running this high of pressure? Any other disadvantage to the lower psi?
High of 220 this summer. Run at 100 psig. One pinch flat in 5 years and I hit that pot hole hard enough to put an S-bend in both sidewalls of the rim. - TF

150 lbs rider here with 23mm Rubino Pros always at 100 rear, 95 front. No pinch flats in 12 months. What's more important to me is that I can carve a fast turn really well at these pressures. At higher pressures, the rear will bounce and the front washes out dangerously in curves that don't have perfectly smooth pavement.

A lower pressure is actually faster and has less rolling resistance than pumping your tires up to the maximum pressure.
Continental has done studies on this subject a find that for a rider of 150lbs, the optimum pressure for the least amount of rolling resistance is 110psi.
A higher pressure causes your tire to bounce off, and back, of objects slowing you down. If you reduce the pressure your tire will roll over the object and absorb the impact, and not slow you down. Zinn has alot to say on this subject.
If you hit something hard enough to to pinch @ 100-110psi, you would likely pinch at 125 too.

I weigh 70 - 75 kilos depending on the shape I'm in--roughly 155 to 165 pounds. I run 120 in the rear and 110 in the front. This is higher by 10 psi than I really should run; but I can only remember one pinch flat in the last ten years. That happend when I hit a small, pyramid shaped rock that may have been made by the gods specifically for pinch flatting a tyre.

I've run a lot of different tires all at their maximum; Vredestein (150psi) Maxxis (130psi) and Continental (120psi). For me I like the feel of a high pressure tire when carving corners at high speed (crits, freaky fast downhill runs, powering through traffic). Whenever they're 20psi low, they feel totally flat, like the tire slops around on the rim (I fully admit it might be all in my head but I don't feel the confidence when the pressure is low).
In my opinion, high pressure doesn't necessary eliminate pinch flats, I've had two--one was from a scary manhole cover and one was at a bad RR crossing. I also hit one pothole hard enough to dent the rim, but somehow didn't pinch flat.

I weigh ~145 lbs (65-66 kg) and run 100 psi on both front and rear tyre(carbon frame and fork). Never any pinch flat.

I used to be 72kg (155 lbs?) and ran my aluminium Trek 1000 on 90 psi to improve the harsh ride. Once again never any pinch flat.

In all cases the tyres were 700*23C, clinchers.

I tried 110 psi a few times and the ride got a little bit harder (not a lot!) but my training performance did not improve at all! So why bother?

I would say ride on 95-105 psi range (700*23C) if you weigh <= 170 lbs. And lower pressure is better if the road is wet too.

High pressure of >110+ psi is really only meant for racing as far as I can tell where 1 second can win you a race/stage and nobody cares about comfort.