* For aerodynamic efficiency, the carbon Vuka Bull utilizes the watt saving wing-shape of Zipp's SL-70 Aero bar. * Bull is designed to be wide enough to help you control your bike in corners, and climb comfortably, but narrow enough to not slow you down when you are in the aerobars. * Flip design that allows it a rise or drop allowing you to have your hands where you need them. * Zipp's Rapid Route technology, now with the ability to move control cables, hoses and wires through the stem clamp area, making it compatible with modern integrated cockpit systems.