Can I Upgrade ST225/75R15 Tires to ST235/80R16

Updated 04/25/2020 | Published 04/23/2020

Question:

would you be able to replace ST225/75r15 with 235/80r16 tires?

asked by: Patrick

Expert Reply:

You can replace a ST225/75R15 trailer tire with a ST235/80R16 trailer tire as long as you have enough room to accommodate the larger tire.

The ST235/80R16 tire will be 1/2 inch wider and 2-1/2 inches larger in diameter than the ST225/75R15 tire. This will put the inner wall of the tire 1/4 of an inch closer to your frame or trailer wall and it will put the tread 1-1/4 inches closer to the underside of the fender/wheel well.

You want at least 2 inches of clearance between the inner side wall of your tire and the trailer wall or frame. You will want at least 3 inches between your front and rear tires if you have a tandem axle trailer and at least 4.5 inches of clearance from the tire tread to the underside of the fender/wheel well.

I've attached a link to our entire selection of ST235/80R16 tires for you to check out.

expert reply by: John H