The 600g weight difference between our Simpatico frame and a carbon Cervelo Aspero gravel frame is soon forgotten when you hit the first corrugations. For a 75kg rider, pushing up a 6% grade at 300W, the extra power required to propel our frame is only 2W. On the flats and downhills the vibration absorbing properties will actually save you more than that through reduced hysteresis, leaving you fresher at the end of each ride.