The Zipp Vuka Carbon EVO 70 Extensions are the perfect addition to your Zipp aero bar. They help keep the rider in the most aerodynamic position possible without sacrificing comfort. With the goal of feeling like the rider is shaking hands with the bar these 70mm rise extensions can be precisely adjusted to the riders body and preference. This 70mm rise version provides the same hand position as the ski tip position. This aluminum version has a very reasonable price tag and comes does not add too much weight compared to the carbon version. The Vuka Race Bend keeps the hands in the proper position to avoid pain or fatigue to the wrists. With a perfect fit for riders using under base bar extension mounting, the Zipp Vuka Alumina 70 Extensions give you professional level aerodynamics at a lower cost.