largest rim/tire width possible (16s)

[Fearit22]

There won't be any problem with those tires especially on 16" rims. I'm running 225/40's on 18x7.5" rims, and I haven't had any trouble with rubbing. The traction is amazing.

[azian21485]

i'm sure you 225s would fit fine on a 7.5 in wide wheel... it just seems unnecessary to me, especially given the increased chance of rubbing with minimal performance gains to be had. sure the tire is wider, but it can get to the point of diminishing returns (i.e. you can't expect to continue to widen a tire and get increased grip).

you will still get increased overall grip as you keep increasing the tire width, but unless you also increase rim width, it'll be very sloppy

225's on a heavy car like the accord is actually pretty small