The riding position, footpeg placement especially, but a set of Kuryakyn Ergo II, III's or Rivco Aero's will fix that. The Boxster style engine does take up a lot of horizontal real estate so the foot-forward position becomes cramped, wish it was a 4 cylinder like the '79, but the pegs cure that with putting you in a forward, legs slightly splayed, position like your natural sitting position on a chair, or the can, six of one.