Larger Trailer Tire Recommendation to Replace a 205/75-15  

Question:

Expert Reply:

Your current trailer tire size of 205/75-15 has an overall diameter of 27.1 inches. The next size up would be the size 225-75-15. This tire size has an outer diameter of 28.4 inches. This would give you almost an inch and a half of additional wheel diameter. Based on the picture you submitted you should have enough clearance for this. For a tire in this size you would want the # AM10256.

Since your trailer tire size starts with the letter P that indicates you actually have passenger vehicle tires on your trailer which is not a good idea. You want ST type tires as they are designed with a stronger sidewall to handle the heavier vertical loads that trailers have. Also the higher tire pressure that ST tires require would make for a tire that stands "taller" than a P rated tire that would have a much lower recommended pressure.

You may need to go with a different rise/drop ball mount as your trailer would sit higher. If after you install the tires your trailer sits with the nose pointed down you would need to go with a different ball mount. To see how to pick out a ball mount check out the FAQ article I attached.

expert reply by: Jameson C

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