The tire I'm looking to get through Discounttire stocks only 225/40/18. I realize that the tire will be slightly narrower and about .3" shorter diameter. The upside would be no wheel rub which i still have with 5mm spaces on the front. Less tire noise, better in the winter, and the pegs might look a bit more aggressive. Downsides would be rougher ride over bumps, not sure about the wheel gap but I am lowered and the speedo would be just a tad off by less than a mile. Note that this is the equal but opposite difference as going to 245/40/18. What do you guys think?