I would get the 40s personally. Look better but not really as good of a ride. Had 35s on my 18s last year and ended up going back to 40s.

98 Lime Green SE w/SVT Kit, Projectors, CF Hood, 18" Rims, GC's, Shaved, System 98.5 Silver SVT #5737 Black FSVT Rims, MSDS, BAT Drop 85 Toyota PU Lifted 06 GSX R 600 Black/Silver My Rides