The perfect bike fit needs to blend slippery aerodynamics and a comfortable, stress-free body position while optimizing control over the bike. Top fitters are constantly devising new methods to maximize and balance these goals. Designed using feedback from top fitters, Zipp's Vuka Carbon Extensions give you all the options needed to optimize your position and go for the win or your personal best: Vuka Carbon Evo extensions decrease drag by starting airflow over the body sooner while keeping the arms and wrists in a comfortable, relaxed position. The Evo shape, with a 20mm inward roll and multi-radius bend, is constructed using carbon fiber, allowing for even more complex shaping and lighter weight. - Compatible with all 22.2mm clip-on systems - Material: Unidirectional carbon - Internal cable routing - Length: 380mm