E rated tire with max psi of 65?
I have Nitto Ridge Grapplers that came on the truck when I bought it used, size LT325/65R18 E 127/124Q. Every E-rated tire I've ever seen is rated to carry its max load at 80psi, so the first trip ...
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Well Burb, you’ve seemed to defy the “logic” of the rvnet patriarchs, lol!
Yes the big tires are generally max rated at 65psi. Not to worry. More air volume and particularly more width, holds more weight at the same pressure as a smaller tire.
To maximize tire life though, especially with the narrow rims ballooning the tread a bit, make sure you’re running the lowest safe pressure that you can stand handling wise, when empty.
The Ram we just got sits on 37s and the (very expensive) tires don’t have many miles on them, but the PO ran the pressure too high for the load. He was running 65F/60R And even though the tires are on 12” wide rims and should run as flat as they possibly can, the centers of the treads were wore down 3 to 4 32nds rear and 2/32 front while the edges of the tread is still virtually new.
I’ve got them aired down to a little under 50F and 35R to even out the treadwear.
Tired a bit lower but it drove a bit mushy.
Yes the big tires are generally max rated at 65psi. Not to worry. More air volume and particularly more width, holds more weight at the same pressure as a smaller tire.
To maximize tire life though, especially with the narrow rims ballooning the tread a bit, make sure you’re running the lowest safe pressure that you can stand handling wise, when empty.
The Ram we just got sits on 37s and the (very expensive) tires don’t have many miles on them, but the PO ran the pressure too high for the load. He was running 65F/60R And even though the tires are on 12” wide rims and should run as flat as they possibly can, the centers of the treads were wore down 3 to 4 32nds rear and 2/32 front while the edges of the tread is still virtually new.
I’ve got them aired down to a little under 50F and 35R to even out the treadwear.
Tired a bit lower but it drove a bit mushy.
