Tire Speed Rating Question
I'm posting this here because the speed rating of a tire seems to me to cross all lines/types of vehicles. Reading up on warranty issues/questions just now, I came across the following language ...
Forum Discussion
Francesca Knowles wrote:
Someone please correct me if I'm wrong, but the way I understand that "increase the air pressure for higher speed" thing is that it refers to recommended pressure for the load as a baseline.
Taking as an example the first tire in the chart below, if installed in a position carrying 1530 pounds of weight, 40 pounds of pressure is "correct". But running it at its 50 pound maximum would allow for the higher speed.
I interpret that to mean that if one's running it at 50 pounds already, one's good for the higher speed....is that correct?
You are absolutely correct.
The "general consensus" for many posters on RV.net is that all trailer tires should always be maxed-out for psi, but in reality I believe they should have their pressures set according to load, as the MFR recommends, just as we do with any other tire.
