Campagnolo 11 speed bar end shifters with cables the brand new bar end shifters have been designed by engineers in the campy tech lab and tested in the wind tunnel to allow maximum performance in terms of weight and aerodynamic efficiency aerodynamic efficiency is maximized thanks to the back to zero position mechanism that always keeps the lever in the optimal position with respect to airflow thanks to the ergonomic design the hands are always in a position to enhance the riders aerodynamic