Can I Swap From St215/75R15 to ST225/75R15 Tires on 2020 Forest River Wildwood Heritage

Expert Reply:

This will come down to the amount of clearance that you've currently got from the top and inside of your tires to the frame of the trailer or wheel well; in most cases you'll want to make sure that you've got at least 3" of clearance from the tops of the wheel wells and 1" or so from the inside of the tire to the frame. With that said, your current ST215/75R15 tires are 27.7" tall and 8.5" wide and an ST225/75R15 tire like the # LHWL304 is 28.3" tall and 8.9" wide, so the difference would be less than 1" of height gained and .4" width. This really shouldn't be an issue but I do recommend checking some measurements to be sure.