Originally Posted by Malc
My big question should have been, why did FR put a label on the RV which is different than the rating on the tires?
The reason a tire manufacturer puts the maximum load capacity of a tire on itís sidewall is to provide all users with a value not to be exceeded. The psi value is the minimum amount of inflation pressure needed to obtain that maximum load capacity.
Vehicle manufacturers can set the recommended inflation pressures on the vehicle certification label to a lower value than what is on the tireís sidewall. However, the value they set must, at a minimum, provide enough load capacity to support the trailerís total GAWR per axle.