Forum Discussion

timmac's avatar
timmac
Explorer
Oct 16, 2016

How Much Tire Air Pressure When Carring More Weight ?

I have upgraded to G rated tires on my motorhome and at max pressure it will carry 4575 lbs per tire {dual} at 110 psi, but when I weighted my motorhome my rear axel weight was 14,400 lbs, {fully load...
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rgatijnet1's avatar
rgatijnet1
Explorer III
Oct 16, 2016
Just remember that for any given weight, it doesn't matter if you have F or G rated tires. It takes the same air pressure to hold the same weight. The only advantage to G rated tires is they will hold more weight, but you have to increase the air pressure to do that. Where your F rated tires may max out at 100 PSI you G rated ties might go to 120 PSI.

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