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. Using carbon for the extensions does more than just reduce the weight of your setup. The unidirectional carbon can be shaped in ways that aluminum cannot, allowing for incredibly complex and precise ergonomics. A 20mm inward roll of the bar can is also achieved for the first time using carbon on these extensions. With a perfect fit for riders using under base bar extension mounting, the Zipp Vuka Carbon 70 Extensions are one of the top choices for professional riders.