Should I Follow the Specs for Tire Pressure in Owners Manual of My Trailer or On the Actual Tires

Published 09/22/2021

Question:

We’ll be going on a cross country trip and my concern is: the manufacturer Aliner recommended the cold psi be @ 50, but the tire spec label recommends max cold psi @ 65. Tires are loadstar karrier kr35 st185/80r13 load range d. The camper loaded is about 1800 lbs +\- 20lbs. Therefore I have two questions , what should the psi be and will the tires safely carry that load? Thank you!

asked by: Dan R

Expert Reply:

You'll always want to follow the specs that are listed directly on the tires themselves. It sounds like you've got the Loadstar ST185/80D13 Bias Trailer Tire - Load Range D # AM1ST79, which are designed to be run at 65psi and have a capacity of 1710-lbs per tire; these tires are well rated for a camper that has a GVWR of almost 2000-lbs, so you've got nothing to worry about.

expert reply by: Erik B