Recommended Replacement Tires For Horse Trailer With 7.00-15 Tires

Question:

I have a horse trailer with 7.00 - 15 tires and one with ST225 75 r16 that I have purchased and want to change tires. Trying to find out replacement size. Can i do ST225 75r15 or is the 16 correct?

asked by: Douglas E

Expert Reply:

If you have all 15-inch tires on your horse trailer I recommend staying with the 15-inch.

If you want to change the tire size it is always recommended to have the same size tires on all the wheels. You can change from a 7.00-15 tire to an ST225/75R15 Radial Trailer Tire like part # AM10256 if the rim on your 7.00-15 is a 6-inch wide rim. The # AM10256 tire will fit 6, 6-1/2, and 7-inch rims.

If you have a 5-1/2, 6, or 6-1/2 inch rim you could use an ST205/75R15 Radial Trailer Tire like part # TR20515D. This may be the better option for you if the wheel rims are a match. You would get the benefit of a radial tire for your trailer which would mean a smoother ride than the bias-ply tires.

If your rims are a 6-inch wide then I recommend replacing the smaller tire with the radial, # AM10256. If your rims are too small I recommend replacing the tire and wheel with a combo. You will need to know the wheel bolt pattern on your hubs. I have attached a link to a helpful article that explains how you take this measurement.

If you do decide to change to the ST225/75R15 tire, the overall diameter of this tire is 28.4 inches versus the diameter of the ST205/75R15 or 7.00-15 tire of 27.1 inches, so you will want to make sure you have the clearance for the larger tire.