Can 205/75-15 and 225-75-15 Trailer Tires Be Used Together on a Trailer

Updated 10/05/2023 | Published 10/04/2023

Question:

I feel I didn’t explain my question correctly the last time I asked. I know it’s best to run trailer tires at full pressure. I have 3 tires size 205/75/R15. And one tire size is 225/75/R15 What I need to know is, does having different size tires on a trailer with 2 axels cause weight distribution problems? Problems with handling? Increased weight load on the smaller tires? Increased wear on the larger tire because it is pushing higher? Are there compensating actions I should take? Should I just fill them all up go?

asked by: Steve

Expert Reply:

Thank you for the extra clarification!

You need to have the same size tires all around your trailer, otherwise you're going to run into all of the problems that you mentioned. It might not be immediate, but it's going to cause uneven wear and loading and everything with your current setup. The only time I tell people running the different tire sizes is okay is when there is an emergency situation and the larger tire is only used to hobble along to a tire shop - but even then you'll want your spare to be the same size as well.

I recommend swapping out your larger one with the Karrier ST205/75R15 Radial Trailer Tire # AM10245 which has a matching size and load range as your current tires. This gives you the best wear on your tires and increases the lifespan of your whole setup.

expert reply by: Jon G