Determining If ST225/75R15 Tires Can Replace 205/75R14 Tires On 2019 Forest River Rockwood Geo Pro

Question:

Looking to upgrade the rim and tire combo on my forest river Geo pro. Rim and tire on the camper now is a 205 75 r14. I would like to upgrade to a 15 inch rim and a little bigger tire. I can see recommendations to use the 225/75/15 but what 15 inch rim would fit the Geo pro?

asked by: Ryan

Helpful Expert Reply:

It is possible that the Taskmaster Provider ST225/75R15 # TR225LRE will fit your 2019 Forester River Rockwood Geo Pro, but to make sure you will need to check the clearance of your current ST205/75R14 tires.

First measure from the top of the tire to the bottom of your fender, you will need to have at least 4" clearance for the larger tires to fit.

Next measure from the inside edge of your tires to the frame of the trailer, you will need to have around 2" for the larger tires to fit.

The ST225/75R15 is going to be about 2-1/4" taller and about 3/4" wide than your ST205/75R14 tires.

For the correct 15" wheels you will need to pick one with the 5 on 4-1/2" bolt pattern. There are quite a few options ranging from a standard trailer wheel like the # AM20436, to different designs that more like what came on your trailer like the # LH35FR.

I went ahead and included a link to all of our 15" wheels with the 5 on 4-1/2" bolt pattern, and a video of the # TR225LRE for you to take a look at.