I have 225/50 R16's Bridgestone Potenza RE960 Pole Position and it is CLOSE. And they are a PITA to get the bead to lock when putting them on the stock rim, the shop had to use high pressure unregulated air to get the tires bead to lock. I do have an aftermarket suspension. The tire rubber is about 1/4 to 1/3" away from the strut/ spring assembly. At full lock I do not rub that I have been able to see. With my after market suspension and LCR Race camber plates I actually bottom out my suspension before the tire is able to rub.
2001 ZX3 2.0L Zetec-
Hatch Nation #42
Going through Rebuild See "The TICK Build Thread" for details (http://www.focusfanatics.com/forum/showthread.php?t=289168&referrerid=62897)