Yea if you are going with that huge of a tire, when you air down your steering response suffers (rims turn while tire stays put). I'd suggest some sort of beadlock on a larger rim. Not to mention if/when you do break a bead you risk damaging that expensive ars tire. I used to run 15s and on 2 consecutive rides I burst beads on 35" tires. The second time ruined the tire cuz i had to pull forward to jack it up. I run H1s now.