Added some 28" STI's today. The machine rides great and they fit with stock suspension, no rubbing whatsoever. 28" is definitely as big as you can go with these and still be stock, tho. No way would 30's fit without rubbing.
Yeah, the red is awesome! I was seriously torn between the smoke grey HD7s and the Red HD7s. The only reason I went with the grey is I was concerned once the wheels got scratched up the red might show the scratches better. They DO look awesome tho!