I run and 18X10 and a 275 tire with the offset front hanger and slider. I autocross regularly and I have zero tire contact. However, I did before changing to the slider. The tire would rube the inside the fender well. I do think I could fit a 10.5 wide wheel and run a 285 without contact. Honestly, the hardest part is finding a wheel and tire you want to run that have a match for the front. Unless you are getting a custom wheel, then it doesn't matter.