Can I Mix Different Load Range Tires Or Tire Sizes On My Trailer

Updated 07/30/2019 | Published 07/28/2019

Question:

Is it ok to run a trailer tire with a max psi of 35lbs on the same side of the trailer with a max psi of 50 or 65lb tire?

asked by: Larry C

Expert Reply:

It sounds like you are running two different load ranges on your trailer. From my research most load range C tires have a maximum of 50 PSI and and a load range B tire will have a maximum of 35 PSI. The load range of a tire indicates it's horizontal and sidewall strength. Normally tires of a higher load range can handle higher amounts of weight and may have larger section widths then a lower range tire so it is not a good idea to mix load ranges or tire sizes on the same trailer. It could lead to uneven wear because one tire may experience more heat/weight stress then the other. You also want to make sure you are inflating the tires to their max PSI rating at all times unless specified otherwise by the manufacturer.

expert reply by: Heather A