I wheeled 10.5 wide tires on 8" wide rims aired down to 11psi and never popped a bead. I'm now running 12.5 tires on 8" wide rims but I haven't aired them down yet, I probably start with 20psi and see if a bead pops


Eric
89 Raider V6, 35s, 5sp, welded rear, 8k winch
89 Raider 2.6 going on 84 4runner frame