Tire psi

[AgBullet]

Yeah, tons of threads and opinions. 65 psi cold for me.

[AlbertF]

Originally Posted by kunzman

I just got a 2023 International 23FBT and dealer told me to keep tires at 50# cold. This sounds plausible according to the chart.
Comments?

By current standards, you have a lightweight tandem axle trailer. At GVWR (if it’s still 6000 lbs for that trailer) you’ll have maybe 5600 lbs on the axles. Divided among 4 tires, 50 psi is lots.

[Hachi]

Originally Posted by kunzman

I just got a 2023 International 23FBT and dealer told me to keep tires at 50# cold. This sounds plausible according to the chart.
Comments?

How did your dealer come up with that number?
Use a pyrometer and let your tires tell you what they need.

[Bill M.]

Any pressure you want to run between 60 and 80 will work fine for the tires, There may be some handling and tire wear differences. But I do not think there is a "magic" pressure for this situation, As far as life of the tire is concerned I think the higher the better. But the trailer costs more and I change my tires every 4 years no matter what. I use a different kind of tire that seems awful happy at 50 psi on my lighter weight trailer.

[OrangeCrush]

On our 25FB I have been running GYE's at 70psi cold. Just replaced them and there is a bit more wear in the middle than the sides so I will probably drop down to 65psi.

[kunzman]

Originally Posted by Hachi

How did your dealer come up with that number?

Use a pyrometer and let your tires tell you what they need.

I only asked because I knew this was a hotly debated topic. I plan on buying a pyrometer. Does anyone have a standard methodology for using one?

[ROBERT CROSS]

Originally Posted by field & stream

The sidewall explicitly says maximum pressure; the manufacturer’s tables imply minimum pressure. Optimum pressure is somewhere in between, and for you to decide.

The Search feature on this site will lead you to numerous threads discussing this topic.

Sidewall pressure is the minimum pressure for the stated load...max pressure is likely well over 150psi.


POI...the tables do not come from the tire mfg.

Bob
🇺🇸

[DCPAS]

Originally Posted by kunzman

I only asked because I knew this was a hotly debated topic. I plan on buying a pyrometer. Does anyone have a standard methodology for using one?

Well at the track, we measure right off a hot lap center and toward the edge on each side. I do not think this is the right way to measure for a trailer tire where load carrying is the principal objective; not overall grip. I see no need to use a pyrometer.

Airstream used 65psi before it freaked out from the trailer tire China bomb blowouts and increased it to 80psi. Therefore, I use 65psi, but even that is too much based on the trailer load charts.