The Bianchi Oltre XR4 is your key to aerodynamic performance on the road. With a balance of aerodynamic features and lightweight climbing ability, this bike nestles into the aero road bike category without losing the qualities that make it a great climber. This is Bianchi’s most aerodynamic frame to date and was created using Computational Fluid Dynamic software to consider various iterations of geometry and tube shape. The wind tunnel was utilized to finally settle on what became the Oltre XR4. As a result, this bike can require 20 watts of power less to hit the same speeds as the XR2. With a new fork profile and headtube shaping, there is no question that Bianchi is making moves in the aero world.