mboy – dont you find though if you doing longer rides and hitting 40km/hr plus speeds that you are having to pedal too fast- which messes up your balance & fun at higher speeds, even if it is sometimes a fire road.
But thanks- if you say 2 teeth arent going to make much difference- then I need a new plan. Maybe a 29er, as moving to SA and know the rides tend to be more xc than trail riding.