37 inch KO2's, Wildtrak, 1.5" RPG collar on front, nothing on back, 1 inch wheel spacers. Plenty of clearance.
I put the stock goodyear tires next to the mounted BFG KO2's (37's). Obviously comparing sizes for mounted vs unmounted isn't the best way to do it, but at least you can see the...
very, very sorry... please allow me to correct myself: "all 37's run a bit small, and so do BFG's".
Is that Better?
I just use a good old fashioned tape measure and it reads 35.5 mounted at 40psi.
I have the RPG perch collars on my 2023 Wildtrak (just the front, 1.5") and it rides just like it did when I drove it off the lot. Also have 37's (KO2's) and wheels spacers on the stock rims with no clearance issues. The BFG's run a bit small which is one of the reasons i chose them.