I have looked everywhere and cannot find the info I need.
I am pretty sure one of you knows the answer.
I am towing a small fifth wheel and changed the Goodyear tires to Michelins LTX/AT2 275/65R20 max load: 3750 lbs. @ 80 psi
I run them at about 50 to 55 psi when loaded.
Question is: I don't think they put in a steel valve in there (but I think I may have found the answer to that, if I run them below 65 psi, that is ok)
My main question is: someone told me to make sure that the rims can take the extra PSI. I looked at the rims and cannot find any maximum numbers on them.
Anyone knows this?
and one more question, is how do I figure how much air I need to add with the extra weight? is there a formula for that?