I have 16.5x10.5 Eagle commets with 31x11.5 Mickey Thompsons, It required minor trimming, just the front of the front fenders. You just cut off that part of the cladding that wraps into the wheel well up front (just the bottom 6" or so) You really can't notice it unless you know its there. Hope this helps, if you need the offset go to the Eagle alloys website and look up my rims. I think they are #18something as in 180-190