Zipp's Stem Top Cap and Bolt are designed to work specifically with Zipp stems. The eight-gram aluminum cap and nine-gram-bolt are the same as those used on bikes built for Zipp-sponsored professional teams. The bolt has a T25 Torx head for ease of adjustment and so you need only one tool for your Zipp cockpit.
Adjust the width of your arm rests to ensure optimum airflow, power transmission, and comfort when doing a TT or bike leg. - Four positions reversible inwards or outwards for the ultimate in positioning - Bolt holes 25.0mm center to center - Fits Vuka Aero, Vuka Clip, Vuka Stealth
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 70 and 110 extensions Vuka 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 now available for the first time in carbon, allowing for even more complex shaping and lighter weight. Vuka Race Carbon Extension The Vuka Race Carbon Extension was designed using data compiled from thousands of fit sessions with recreational and professional cyclists and triathletes by the world’s best fitters. The Vuka Race bend places the wrists at a more natural bend to help riders remain in their tuck to optimize aerodynamics. - Compatible with Vuka Clip, Vuka Aero and all 22.2 systems - Internal cable routing
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