Some lower the back and front end out of necessity, other for the "LOOK". Yes the bike does bottom out on parking lot speed bumps or drags hardware in the twisties mainly when riding two up, but stiffness is not bad...actually on a Harley since your in the EZ recliner position with your weight on the tailbone the bumps are more severe.
On my metric sportbike, my position was foward, more weight on the footpegs, hands and knees crouched on the tank for better road shock resistance due to weight distribution. So lowering was not so much a problem. Low riding bikes are at their best on smooth cruising street speed, the "LOOK" being more important than the rider or ride.
On my metric sportbike, my position was foward, more weight on the footpegs, hands and knees crouched on the tank for better road shock resistance due to weight distribution. So lowering was not so much a problem. Low riding bikes are at their best on smooth cruising street speed, the "LOOK" being more important than the rider or ride.