Originally Posted by Tireman9
Maybe you need to talk directly with Goodyear customer service and not to depend on Tire Rack. They are not saying an increase in inflation is acceptable for any ST tire.
Goodyear Customer service is very clear. You should not exceed the inflation associated with the tire max load, i.e. the inflation molded on the tire.
Did contact goodyear as answer to a former question about the difference between dual and single load , so they probably began to think I am becomming a nusance. Jennifer Chapman adviced me to buy a yearbook of TRA or ETRTO.
But searching for it again I came to this topic of augustus on another forum where Jared J asked about ST tires and Jenifer gave him the answer I need.
Trailer tire max speed. - Fiberglass RV
This shows that goodyear also allows that 10 psi above referencepressure for ST tires. Yust the same as tire-rack wrote.
So its alowed for ST too to use for instance 90 psi in a 80 psi given cold pressure on sidewall.
so now this is aknowledged by a Trusted party for tireman 9, we can go on with my advice of using it for giving the tire the lesser deflection a LT tire would have.
Only risk could be for the valves, but mostly they are metal valves I think that can stand a cold pressure of over 145psi .
Also the rimm maximum presssure can be an obstacle still, I asume that given maximum is also cold pressure and a pressure rising by temperature rising in the tire is included, yust as it is for valves and tires.