The Zipp Vuka Evo Carbon Extensions are light, aero, comfortable, and adjustable.

They start out in the back round, and 22.2mm in diameter. This is the standard extension diameter, and it will work not only with Zipp clamps, but most clamps on the market. As the bars extend forward, they get shaped for better gripping. And at the front, the extension is shaped for running bar-end shifting. There are plugs that come with, but you can run electronic shifters or cable-actuated, and the cable runs inside the bars, with a dedicated channel.

The Race Carbon is the flattest of the bars, best for those who great flexibility who like a low position. The Evo extensions feature a 20mm inward roll for the wrists and a multi-radius bend. The 70 puts your hands, when paired with an above-bar mounting position, with Zipps earlier Ski Tip. The 110 is designed to work best with mounts that fix the extensions below a base bar.

The Race Carbon is 360mm long, weighs 135g, and has a rise of 52mm. The Evo Carbon 70mm is 380mm long, weighs 140g, and has a rise of 70mm. The Evo Carbon 110mm is 370mm long, weighs 142g, and has a rise of 110mm. They all take plug-style shifters. They all can stand a max tightening torque of 4Nm.

Extensive data capture, as well as Exogram technology borrowed from SRAM crankarms have improved the breed. The Zipp Vuka Evo Carbon Extensions help you find your position.