Replacing a 185/70D13 Trailer Tire with a ST185/80D13 Trailer Tire On The Same Wheel

Updated 08/05/2015 | Published 08/04/2015

Question:

Hello, Can I use an ST185/80D13 tire with my current rims which currently have 185/70R13 sized tires? Your help would be much appreciated..

asked by: Jeremy

Expert Reply:

The 185/80D13 should fit the same wheel as the 185/70R13. A 185/70R13 is not a typical trailer tire size. The difference between these tires is that the 185/80D13 is just over 1/2 inch bigger in overall diameter. This means the tire would sit 1/4 inch closer to the fender well. As long as the tire will not come into contact with the fender, a ST185/80D13 tire should work well for you.

The ST185/80D13 tire that we offer, # AM1ST79, fits 13 inch x 4-1/2 inch, 13 inch by 5 inch, and 13 inch by 5-1/2 inch wheels.

expert reply by: Victoria B