Zipp Vuka Alumina 22.2-mm Aero Bar Extensions (Ski-Tip)
Vuka Alumina Extensions come with an industry-standard 22.2-mm diameter, are compatible with the Vuka Alumina Clip but not the VukaClip or VukaAero. Extension styles have a length of 360-mm and have sleek internal cable routing. They are compatible with all shifting systems.