I think 20's are way too big, and 19's are so so in my book, but ofcourse looks are all subjective. I want to get an 18x10.5 rim in the rear so i can fit 315's on it, but i can't seem to find any. The only rims that i have found that are 10.5 inches wide, are 17"s, and 17"s just seem a tad too...