I agree with the tire width, go tall and narrow, a 215/85/16 would be best. However, I do disagree about the Diamondbacks, just from what I see on their site. Looks like most of their tires, which are not made as whitewalls, but converted from regular tires, are based on Korean and Chinese import tires, mostly Kumho and Hankooks. I would be leary of any converted tire, as the tire needs to be ground on the sidewall to have the whitewall bonded to it, similar to the old Port-A-Walls JC Whitney used to sell. The Cokers are made as whitewalls right from the start, which is a much better way to construct them.