Profile Design Century Aerobar Low armrest bridges and three mount positions. The Century Aerobar gives you the aero advantage on long rides with the Century Aerobars. The one-piece design has a higher, more comfortable position that allow for comfortable centuries, benefit rides or triathlons. These light aluminum aerobars offers a wide array of comfortable hand positions. You can adjust the Centry Aerobars' angle, rotation and width of the arm pads for a custom fit. Easy to clip on!