Aero Bar Carbon UD with H.E.A high efficiency aerodynamic. Chrono handlebar with spacers and angled top clamp but without adapters. It is the best tool to achieve a perfect ergonomic and aerodynamic position. Assembly with traditional stem 31.8mm and C-C width 420mm To achieve the perfect position, it offers multiple adjustments in height, length, and angle. The extension clamps come with a 15º angle (0º clamps are optional) The height from the center of the handlebar to the center of the extension bar is 35mm without spacers. Spacers included 5/10/18/20mm with maximum lift 90mm. Internal cable routing through the handlebars.