Can a 175/80-13 Be Used as a Temporary Spare for 185/80-13 Trailer Tires

Published 03/18/2016

Products Featured in This Question

Loadstar ST185/80D13 Bias Trailer Tire with 13" White Wheel - 5 on 4-1/2 - Load Range D

(2766)

$167.57

Loadstar ST185/80D13 Bias Trailer Tire - Load Range D

(3866)

$122.44

Question:

If you have st185 80r13 on your trailer and your spare is a 175 what problem will you have if you have to use it

asked by: William D

Expert Reply:

The 175/80-13 trailer tire size will be about 0.3 inches shorter and about 1/2 inch narrower than the 185 size and the capacity will be different. The 175 will work fine as a spare for temporary use but you will want to fix or replace the 185 as soon as you can. With mismatched tire sizes you can have tracking and suspension problems, uneven tire wear, and capacity problems.

If you want to replace the 175 spare with a 185 we do have tire # AM1ST79 which will fit the same wheel as a 175.

expert reply by: Michael H