I'm running a 245/275 setup with Kuhmo V710's on 17x8.5" wheels. The 275 is a stretch for the 8.5" rim but I am truly impressed with the difference in handling. OMG does the car stick! I don't use spacers but it is a tight fit in the front. The rear could be spaced out a little but I'm not planning to do this because I'm thoroughly impressed with the handling at this point.