Quote:
Originally Posted by crabman
Mine came with 55lbs all around. The max pressure for a PS4 is 50; on one of the tires that part of the label was right above the valve stem, but, who's looking I guess.
In any event mine is a 24 X5M, 22/21 PS4s, recommended on the door jamb is 35/39 cold for low speed driving. That jibes with the manual but the way I read it the door jamb is the one to pay attention to because it takes into account the installed tires.
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I think 55psi is too high for tires with max pressure of 50. I would adjust so the max wont exceed 50, which is already very high
Typically, the lower the tire profile, the higher the pressure needs to be. And the higher the pressure, the less the tire deform under load, so more predictable handling. This maybe why X5m spec higher pressure. But then higher pressure also has less grip, more bumpy ride. So it is kind of a balance you have to find if you want to drift out side of factory spec