How Wide of a Rim is Recommended for the Tire Size ST225/75R15
Updated 12/15/2025 | Published 05/29/2011 >
Question:
I just purchased a new trailer. The tire size is ST225/75R15. The wheels are 5 inches in width. Is this enough rim width?
asked by: Ed
Expert Reply:
For a wheel that is 5 inches in width and 15 inches in diameter you would want tires that are size ST205/75-15.
For the tire size ST225/75R15 you listed you would want a rim that is from 6-7 inches in width.
I attached a department page that has all of our tires that are that size. I also attached a page on trailer tire sizing that has a chart that show what tire sizes go with the different rim sizes.

Cliff L.
12/15/2025
Is an 8” GM rally wheel too much for a trans eagle 225/75/15 load range f radial ? Will the rim width compromise the integrity and/or functionality of the tire?

Product Page this Question was Asked From
Dexstar Steel Spoke Trailer Wheel - 15" x 6" Rim - 6 on 5-1/2 - White Powder Coat
- Trailer Tires and Wheels
- Wheel Only
- 15 Inch
- 6 on 5-1/2 Inch
- Steel Wheels - Powder Coat
- Dexstar
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Brent
12/11/2025
Would be helpful if the dept. page was available here also.