Forum Discussion
ktmrfs
Jun 29, 2018Explorer III
always adjust inflation with COLD tires, E.G. tires that have cooled to near or at ambient temperature. every tire mfg will state that.
On trailer tires virtually all the tire mfg recomend "inflate to max sidewall pressure when cold" regardless of load. The exception is if the tires have a much much higher load capacity than actual load. E.G. running a LRE tire to replace a LRC. then they will say to adjust downward.
Now if one has gone up in load range on a trailer tire, it is always prudent to also check that the rim is rated for the recomended tire pressure as well. If not one has a decision to make.....
This is different than car/truck inflation that is more based on load.
Tire pressure will rise when running, Mine LRE inflated to 80psi will rise to 90-95 on a hot day on a long tow. Not an issue, tire mfg take that into account in tire design.
On trailer tires virtually all the tire mfg recomend "inflate to max sidewall pressure when cold" regardless of load. The exception is if the tires have a much much higher load capacity than actual load. E.G. running a LRE tire to replace a LRC. then they will say to adjust downward.
Now if one has gone up in load range on a trailer tire, it is always prudent to also check that the rim is rated for the recomended tire pressure as well. If not one has a decision to make.....
This is different than car/truck inflation that is more based on load.
Tire pressure will rise when running, Mine LRE inflated to 80psi will rise to 90-95 on a hot day on a long tow. Not an issue, tire mfg take that into account in tire design.
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