PRO's Vibe Aero Superlight Handlebar expands on the Vibe Superlight with a more aerodynamic shape, with the same superb Di2 compatibility to complete your road bike's upgrade. PRO uses unidirectional carbon to balance strength, stiffness, and low weight for precise handling on technical descents and high-speed sprints. PRO adds high-performance Innegra fiber to the carbon mix to further strengthen the bar's most vulnerable areas without adding weight, so the bars are ready to float over chip-sealed roads and cobblestone streets alike. A flattened top section and narrower drop construction improves aerodynamics to give you every advantage.