Maximum Tire Pressure

I lived and breathed tire pressure issues for 8 years when I sold PressurePro TPMS. Putting the pressure at the value on the sidewall has most RV's running around on tires that are too hard. I know that the tire pressure you should use is not a fixed value you can find anywhere for your brand tire, but there is one sure way to find out. Each owner needs to weigh their rig. Ideally, the weight of each wheel, or set of wheels, would be determined. Since there are few scales that will allow you to position your rig to make this happen, the next best choice is to weigh the front and rear wheels separately. Truck scales will allow this. Once you have these data, go to your tire manufacturer's web site and look for Load-Inflation Tables for your tire to get the pressure your tires need to support the weight and give you the most comfortable ride possible. The reason "one size does not fit all" is the way each owner loads his rig. Speaking of this, look in your 'basement' and try to even out the load from side to side. It will make a difference.