Something to hold on to

Vuka Alumina Extensions 


Vuka Alumina Extensions help you dial in your optimal aero position at, well, an optimal price. Vuka Alumina Extensions are available in two styles:

  • The new Vuka Alumina Race 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. 175 grams.
  • Ski-Tip places you in a position for speed as well as long-haul comfort. 185 grams.

Vuka Alumina Extensions come with an industry-standard 22.2mm diameter, are compatible with the new Vuka Alumina Clip but not the VukaClip or VukaAero. Both extension styles have a length of 360mm and have sleek internal cable routing. They are compatible with all shifting systems.


Guidelines for cutting extensions:

  • The extensions are marked on the underside in 1cm increments with half centimeter increments shown with smaller lines. A minimum of 3cm of extension must be inserted into the VukaBullet body to avoid damaging the extensions. This means that a minimum of six marks (three large and three small) must be inserted into the bar after the bars are cut to length.
  • If more than 4cm of extension need to be removed, we recommend removing in 2-3cm increments to avoid overcutting of the extensions.
  • The extension should be wrapped in masking tape at the point where it will be cut and cut with an aluminum-specific hacksaw blade. The masking tape will help ensure that the cut is clean and no jagged fibers lift off of the part.

Warning: Do NOT cut anything from the front end of these extensions.


$55, €49 per set


Vuka Alumina Race
Weight 175g
Length 360mm
Shifter fit plug style
Shifter Bore Diameter 19.2 ±0.25 37mm deep
Rise 52mm
Clip Clamp Fit 22.2 +0.15 -0.05mm
Clip Clamp Torque 4Nm
Vuka Alumina Ski
Weight 185g
Length 360mm
Shifter fit plug style
Shifter Bore Diameter 19.2 ±0.25 37mm deep
Rise 40° or 70mm
Clip Clamp Fit 22.2 +0.15 -0.05mm
Clip Clamp Torque 4Nm
Triathlete Buyer's Guide: Vuka Alumina Best in Class  April 2013 [pdf]

The 2013 Triathlete Magazine Buyer's Guide named the Vuka Alumina as its Best in Class Aerobar. "Their adjustment range is incredible in all directions. The extensions are interchangeable, and Zipp offers a wide variety of shapes."

Click on PDF for full review

BikeRadar: "Adjustable six ways to Sunday"  September 2012 praises the Vuka Alumina aero cockpit system for doing something many aero bars fail to do -- help riders achieve their most aerodynamic position on the bike.


Gear Check: Zipp Alumina Bars, Clips & Extensions  September 2012

Triathlete Europe found the Vuka Alumina to be abundant in its affordability and adjustability:

"When designing the Alumina Zipp spoke to bike fitters so see what would help the most and found adjustability was key with so many different designs of triathlon bike. Zipp listened because their affordable aluminium Alumina bars deliver choice and adjustability by the truckload."


Slowtwitch: Vuka Alumina a hit  September 2012's Dan Empfield is full of praise in his analysis of the Vuka Alumina Clip and aero cockpit system: "Zipp has designed a bar here that meets just about every design and market imperative. It's modular. It's comfortable. It's adjustable. And it's cheap. It's like somebody at Zipp sat down and wrote out a list of everything that makes an aerobar work for end users, bike shop personnel, and bike makers. Then designed a bar, in the Zipp Vuka Alumina Clip, with those imperatives in mind. What a concept!"


TriRig: Vuka Alumina fantastic  June 2012

In his review on, Nick Salazar takes a detailed look at Vuka Alumina and writes: "The Vuka Alumina Clip, Bar, and Extensions are fantastic pieces of kit that would make a worthy front end on a very wide range of bikes, for a very wide range of fit needs." Read the entire review here