I actually run 245 front on 9.5 +15 , and have run 255 without problem. I prefure the 255's up front, and 275 in the rear on 10.5 +10. Depending on the brand of rear tire you will need a roll, 285's are great, but IMO not needed unless your FI

 

I have a set of 225/40 and 245/40 hankook ventus v12 evos and a set of 245/35 and 275/35 falken fk452's

i would rather run the falkens I just want to make sure I wont rub. All I have done is the rears are rolled, no pull. Car is sorta low.

 

With the rear rolled, your good.