Recommended Tire Pressure for ST145-R12 Load Range F Trailer Tires

Published 05/22/2021

Question:

I have a double wave runner trailer with 2 load star st145r12 tires. They are load range f with a max psi 80. What psi should I put in them?

asked by: Brian R

Expert Reply:

It's recommended that trailer tires be inflated to the maximum pressure rating listed on the tire's sidewall. As the pressure is reduced from that point, the load capacity of the tire is reduced by an unknown level, so it's safest to keep them inflated to the maximum 80 psi you stated.

For more information about trailer wheels and tires (probably more than you'd ever want to know), click the provided link that will take you to our series of trailer wheel/tire help articles.

expert reply by: Mike L