Whats the best pressure to run in 22.5 low pros on the horse

100-105 psi

 

depends on tire , speed and weight. i run 95 psi in Michelins

 

What ever the tire says on the sidewall. Don't worry about bobtailing. If you run lower pressure to get some comfort you will pay in the long run for irregular and accelerated tire wear. Trust me! I have been doing truck alignments for years and 95% of the time when someone has irregular tire wear they are running pressures lower than 95psi. Most tire manufactures have tire pressures rated by payload. You will notice most of these charts don't go below 80 psi. This is because no tire maker recommends tire pressure lower than that for highway use. They consider 75 psi as a FLAT TIRE! So basically if your tire is rated for 105 and you drop it 90, the tire is 50% flat!

 

Ditch the crap in the air hoses at the truck stops and fill your tires with nitrogen.

 

A nice option to spec now is a tire inflation system. The air for the tires comes from the truck so if your air dryer is working the air is clean and dry. Your tires are always at 105, or whatever you set them to. The problem with Nitrogen is cost and availability. We have a fleet we service and they have several Nitrogen test trucks and suffer the same fate as all tires, slow leak through percolation. It is normal for any tire to lose up to 3 psi a week just through tiny leaks from the valve stem, tire mount and through the rubber itself! Once the pressure drops down, again to 90-95 psi range, we start to see bad wear again. Always keep and eye on the tire pressure no matter what you use.