The name is fairly simple and tells most. The Zipp Vuka Alumina Extensions (22.2) are 22.2mm diameter, aluminum-shafted aerobar extensions that are designed to work with the Zipp Vuka Alumina Clip.

There are two styles, the Ski, or L-bend, or the Race, which is more of an S-bend. They both start out at 360mm long, accommodate plug-style mechanical or electronic shifters, and can be cut down to size if necessary. For this there are 1cm markings on the underside of the extensions. Measure twice, cut once, etc: you’ll find instructions with the bars.

The Race bend has 52mm of rise while the Ski has 70mm.

The Zipp Vuka Alumina Extensions are the easiest way to grab onto something sticking out from your handlebars.