Originally Posted by NikoV95
Hey, so I'm needing new tires soon, and I'm debating on moving up in the size department. I'm currently running the stock size of 265/60R18 with 18x9 rims and a +20mm offset. No lift, nothing fancy at all. Would a tire size of 275/65/18 works with what I have for a rim, or would there be rubbing?
Yeah, the offset is the part that makes it questionable. I know the size will work with the proper rim configuration, but I'm not sure how much offset you can get away with before it rubs. I'm also using Saraha rims (from a '16 Unlimited), with 255/70/18 tires. The diameter is the same as you're looking at, but they are a little narrower, and more importantly the rims aren't pushed out as far. The stock 20's on the WK2 are 20x9 +56.4, and the stock 18's are 18x8 +56.4, both of which give you the same 7.4" from the back of the tire to the mounting surface, and 3" from the front of the tire to the mounting surface.
By using the same size tire on a 18x9 +20, you'll move the tire outboard 1.4" toward the fender. This is only really a concern when cornering. If you then add a wider, and larger diameter, tire on that same rim you're pushing it even closer to the fender. The width will be 1/4" closer but the added 2" of diameter along with that increased width, and minimal offset may cause interference.
I know the size certainly can work with the correct rim configuration, but I don't know if a 18x9+20 is it. I guess long story short, if you buy those tires, and it doesn't work out, you can replace the rims with something closer to stock, and still be able to use the tires.
And just because I like the way it looks, here's mine with the JKU rims, and BFG KO2 tires (32x10).