How many PSI do you run in YOUR tires?

[ModelE]

Originally Posted by Big Dave

I am back up to 100 psi.

The truck coasts well again.

Really

[1337]

Originally Posted by younggun

Really

Truck tires are designed to hold much higher pressure than car tires. 100 PSI in a car would seem insane, but not so much in a truck.

[gascort]

51 psi tires, inflated to sidewall max. The past 2 months I haven't had to add any air; increased temps seem to be keeping pace with any leakage. I keep checking every 2 fillups (every 4.5 weeks) and each time my psi has increased. I started at 50 and now I'm at 53 in a couple of tires. Probably shows how important it is to check in the fall!

[gascort]

Originally Posted by Big Dave

The glaciers have receded from the frozen steppes.

I am back up to 100 psi.

The truck coasts well again.

Dave, what are your tires rated at or recommended to be inflated to? 75ish I guess? I know big big truck tires are at ~85psi.

Oh, and for the dude curious about truck psi, it's really easy to overload a truck with underinflated tires - it's the cause of many a truck or trailer blowout - having them at 30-40 psi and then throwing a load in the back heats up the sidewall!

[Big Dave]

The sidewall rating on my E-rated Firebombs is 80 psi. No apparent "crown" of the tread.

Never under-inflate Firestones, but 25% over-inflate is no big deal.

[gascort]

Originally Posted by Big Dave

Never under-inflate Firestones, but 25% over-inflate is no big deal.

too many people learned that the hard way!

[RobertSmalls]

I run 90 PSI in my bicycle tires. They're rated for 100PSI min, 130 PSI max, and the ride is brutal. The tires are 22mm wide. If my frame would accommodate wider tires, I'd throw my 32s on there.

I run my 700c*32 tires at the sidewall max 60psi. I would go higher for lower rolling resistance, but I have enough problems getting tubes to 60psi without blowing a tire off the rim or puncturing a tube.

The Subaru gets a 33% overinflate to the sidewall max 40psi. I have no need to go higher.

[elhigh]

Sidewall max, 44mpg. It must be working, crusty ol' truck keeps passing up the gas stations...

Finally had to get new tires a couple of months ago, and the tire guys didn't say anything about abnormal wear - of course, I hadn't noted any myownself either, but it's nice to get the silent confirmation, too. And those old tires had been on there for years, so it's not like running high pressures is killing my tires any faster.

[elhigh]

Originally Posted by RobertSmalls

I run 90 PSI in my bicycle tires. They're rated for 100PSI min, 130 PSI max, and the ride is brutal. The tires are 22mm wide. If my frame would accommodate wider tires, I'd throw my 32s on there.

I finally broke my Bianchi for the last time and got rid of it, but as a rigid MTB I was always amazed at how much better it rode with just a few more psi in the tires. The range was 35-65 and I always ran it at 65. I don't do mountain much, but I'm absolute hell on a bike on curbs, ramps and stairs - the "urban mountains" if you will. And on smooth pavement, giving up energy to sidewall flex is just dumb.

But yeah, it rode like a buckboard.

[PA Prius]

'04 Prius, Integrities with 44 psi sidewall max. I run 50 front and 48 rear.

PA Prius