Capacity and PSI Rating for 4.80-12 Load Range C Trailer Tire

Published 08/27/2014

Products Featured in This Question

Kenda 4.80-12 Bias Trailer Tire with 12" White Wheel - 4 on 4 - Load Range C

(7602)

$93.85

Kenda K353 Bias Trailer Tire - 4.80-12 - Load Range C

(3846)

$44.16

Question:

The 4.80-12 tire has a c rating and states u should have 90 psi in the tires. Is this correct, am I reading this wrong?

asked by: Dale G

Expert Reply:

You are correct. That is a load range C tire rated for 990 pounds at 90 psi. Trailer tires should always be inflated to the maximum psi indicated on the tire. This is because trailer tires are built with a thicker sidewall than passenger vehicle tires.

If under inflated the thicker sidewall will generate excessive heat causing the tire to fail. I have included a link to our help article on trailer tires for you. I have also linked the 4.80-12 tires we carry. Tire # AM10062, which is the same size and load range as the tire you have, has the same 990 pound and 90 psi rating.

expert reply by: Michael H