When it comes to handlebars, tried and true aluminum remains the material of choice for many pros. In part, that’s because their bikes have to meet a minimum weight requirement to race. But that also means that aluminum bars such as the Service Course® have to provide a level of fit, durability and performance that rivals what can be achieved in carbon bars.
The Service Course is produced using 7050 aluminum for impressive strength and rigidity at a weight of 295 g (44 cm). It features a classic look with round cross-sections throughout and is available in the same Short & Shallow or Traditional Bend shapes as our carbon bars. What's more, the drops are angled outward by 2 degrees to reduce wrist strain.
http://zipp.com/bars/service-course-bar/#