[RayChez1]

Most tires are stamped on the outside wall telling you how much tire pressure should be when cold and how much when hot. I have 22.5 265/75 Toyo tires on my 38' Scenic Cruiser and I found out that it rides better at 100 lbs cold. When I first bought the tires the tire place put in 120 lbs of air and I didn't like the ride. The tires felt like they were too hard. At 100 lbs it gives me a nice comfortable ride on the Neway IFS chassis.
You have to have a big compressor to put that much air on those big tires. You can't do it with one of these plug into the cigarite lighter type compressor. You have to have a good size air resvoir tank to build up pressure or else you could be there all day trying to fill up those big tires. Even most gas stations have small compressors anymore, where you put in quarters. They are for automobile tires, not big coach tires.