I'm very happy with 650 (after all it is my #10 650). No pillion. I like to ride fast but on back roads which 650 is plenty enough IMHO. On highways usually not faster then 130km/h since speeding tickets and insurance cost you a lot here. Don't ask me how I know...Some questions. Are You happy with Your 650 ? Do You carry a pillion ? Do You like to ride fast much of the time ?