rim width

On the street
I run my 295 BFG/Coopers on 10s; but for long, even across the face,and not less-worn shoulders, tread-life, I have to keep the pressure down at 24psi. Of course when entering a turn, the tires roll over onto the sidewalls a bit; but I got used to it, and in the end I kindof like it, cuz the car oversteers nicely with just a bit of power applied. And if it gets to be too much, a lil more gas gets me a nice sweeping 2 or 3 lane drift with lotsa tiresmoke, and the roll-over is history.
IMO, another inch would not be too much, and 28psi would be a lil more turn-in friendly.