PRO's Vibe Superlight Handlebar is the lightest available from the Shimano subsidiary and designed for 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. High-performance Innegra fiber further strengthens the bar's most vulnerable areas without adding weight, so you can float over chip-sealed roads and cobblestone streets alike. The Superlight has an ergonomic oversized top section, giving you better options for hand positions, as well as room for computer and light mounts. The bars are compatible with the new bar-end mounted Di2 junction box, which sits at the end of either drop instead of a bar plug. The internal cable ports let you feed E-Tube or mechanical shift housing as well as hydraulic or regular brake housing through the system.