That is probably me. I was running 245 Bridgestone 930s for one set. I had no rubbing issues, even on very hard use on winding back roads. The critical factor is the sidewall stiffness. That model had -very- stiff sidewalls, and with almost no flexing, there was no touching. I am running 235s now, and the tire never comes close to the strut. All this is also effected by wheel offset and by the wheel height as well. A taller wheel is moving the tire further from the strut, which allows more width, but at the same time this gets the tire closer to the wheel well rim. Offset does the same thing, though more directly by moving straight in or out for the center point of the wheel.
pax, smn