I run highway speeds 80 mph = or - for long distances with no problem and little or no vibration. I also can pull away from my friends Night Train with his big bore and 6 speed trand and dyno tune under the seat and all I have is open pipes and Freak with rejetted carbs.Granted I don't crush him but I can slowly pull away and I make his bike look rediculous in the twisties. So I would say add that to the other responses and it's a non-issue.Never had a problem with mine or Wendys bikes yet either. We both have 04s with the 790 engine (I think the better engine due to the cams only)mine a Speedmaster and hers an America.


I learned all I need to know about life by killing smart people and eating their brains.
Eat right ,Exercise ,Stay fit, Die Anyway!