The 2021 Bianchi Oltre XR4 Dura-Ace Di2 is a race-bred aero road bike designed to maximize speed and efficiency. Its Countervail carbon frame dampens road vibrations without sacrificing stiffness, giving it a smooth yet razor-sharp ride feel. The aggressive geometry and aerodynamic tube profiles make it a favorite for fast climbs, sprint finishes, and high-speed efforts. Outfitted with Shimano Dura-Ace Di2, it delivers flawless electronic shifting and top-tier performance, while hydraulic disc brakes ensure confident control. Built for riders chasing every competitive edge, the Oltre XR4 blends Italian style with pro-level race performance.