Can Trailer Tire Size of 235/75/R15 Go to a 225/75/R15 and be Safe

Updated 01/27/2026 | Published 01/07/2026

Question:

Can you explain the difference needed to make sure we are safe if we down size from a 235/75/R15 to a 225/75/R15 tire. I am having trouble finding any reliable information online

asked by: Chris S

Expert Reply:

Hey Chris, the size difference between a 235/75/R15 and a 225/75/R15 tire is very small and would not be an issue to go from one to the other. You honestly wouldn't even notice a difference. It's a width difference of 10 mm and a height difference of .6 of an inch. Since that height difference is split between either side of the wheel the height change would only be .3 of an inch.

In the smaller size we have the part # AM10303 which is speed rated for 81 mph and has a capacity of 2,860 lbs at 80 psi.

expert reply by: Jameson C

Jameson C.

1/27/2026

Hey Chris, how did things go after switching to the 225/75R15 tires? Did the ride and handling feel about the same as before? Your feedback could help others thinking about downsizing tire sizes.