Tire pressure
I drive a 32' Itasca Cambria. I keep the tire pressure at 80 psi and the air bladder bags at 35 psi. When we are driving the RV seems to feel every asphalt repair, expansion joints, road damage, etc. ...
Forum Discussion
What does the door sticker say? That's generally the pressure required for the maximum axle weights and a reasonable starting point, at least until you can get a chance to weigh your unit (packed for travel) for yourself and see what the actual axle weights are. The tire companies have charts of weight vs. pressure to follow once you know the weights. (These are standard for a given tire size and type, so it's not really essential to find the chart from the company that made your tires.)
For the typical Ford chassis class C, the rear tires usually end up needing 80 psi but the fronts are somewhat lower, 60 psi or 70 psi or so. Reducing the pressure in the fronts if excessive would help the ride some. Realistically you are not ever going to get a Cadillac ride out of a class C motorhome, though; it's basically a box truck that happens to have an efficiency apartment in the box.
For the typical Ford chassis class C, the rear tires usually end up needing 80 psi but the fronts are somewhat lower, 60 psi or 70 psi or so. Reducing the pressure in the fronts if excessive would help the ride some. Realistically you are not ever going to get a Cadillac ride out of a class C motorhome, though; it's basically a box truck that happens to have an efficiency apartment in the box.
