If a Trailer Wheel is Rated for 60 psi and a Tire is Rated for 65 psi, Which Rating Should I Follow

Published 04/05/2012

Question:

My tires are Kumho 857 commercial trailer tires and are rated at 65 psi. Is there any problem using them with your aluminium wheels that have a 60 psi rating?

asked by: Ray

Expert Reply:

There is a little bit of a contradiction here. We usually say that you need to inflate a trailer tire to the maximum psi as indicated on the tire. But at the same time, what about when the compatible wheel has a lower psi rating? In this case, it is only a 5 psi difference.

Inflating the tire to 65 psi and it is very unlikely that it will destroy the wheel, and only inflating the tires to 60 psi and it is very unlikely that it will cause them to fail.

Inflating to 65 psi would not be a problem.

expert reply by: Michael H