Should Trailer Tire Be Inflated To Maximum Air Pressure Listed On Sidewall Of Tire

Updated 03/07/2017 | Published 03/04/2017

Question:

has a ply rating of 8 and a 1,330-lb maximum load at 70 psi. The 10inch diameter x 6inch wide steel trailer wheel features a 4 on 4 bolt pattern and a corrosion-resistant powder coat finish. end quote, does this mean the tire should run 70 psi

asked by: Tim

Expert Reply:

You are correct. The tire that is included with the Kenda Tire/Wheel Combo, part # AM3H410 should be inflated to 70 psi. At the maximum air pressure, the tires will perform and wear best, and get the best gas mileage.

If a trailer tire is inflated to a lower air pressure than the maximum, the amount of weight that the tire can carry will be reduced. If a heavier load is put on the trailer tire than what is recommended for that air pressure, the sidewall of the tire could heat up and cause the tire to fail. You should always inflate your tires when they are cold.

If a tire is over-inflated, it will wear more in the center of the tread, all the way around the tire. If a tire is under-inflated, it will wear on the outside edges of the tread, all the way around the tire.

expert reply by: Jeffrey L