Can You Upgrade ST175/80D13 Tires On Utility Trailer

Updated 08/09/2022 | Published 08/05/2022

Question:

I have ST175/80D/13’s. Do I have to replace with the exact same numbers on replacement tires? The wheels are a few inches below the wheel wells at the moment.

asked by: Brad

Expert Reply:

In order to determine if you can upgrade tire sizes you'll need to measure for clearance. We recommend 3" on top and 1" inside the existing tire. If you have more than this then you can move up a size, the next largest would be a 185/80-13 such as the Castle Rock ST185/80R13 Radial Trailer Tire part # LHCK105 (24.6" Diameter x 7.2" Wide). If not it's best to stick with the same size you have such as the Loadstar ST175/80D13 Bias Trailer Tire part # AM1ST74 (24" Diameter x 6.6" Wide).

expert reply by: Conner L