2018 JLU 6sp MT Sport S - 2 inch spacer lift. Looking at and going back and forth on the age old question of what upgraded tire size would be the ideal size without immediately regretting said choice. The 285 is the obvious and what I've seen most often selected, such as what was put on Pippi. Is going up marginally to a 305 worth the extra coin? Or once you're looking at a 305, should one just bite the bullet and go with a 315? Tire weight was only a couple pounds different on a Nitto Ridge Grapper, and the cost between the two wasn't much on Discount Tire as well.