Shankswrote a review of Zipp Contour SL Carbon Handlebar on December 4, 2013
Familiarity: I've used it several times
I bought the 42cm shallow model and it fits me great! Here are my impressions from 200miles of usage:
1. Stiff - They are very stiff race bars and don't cut out a lot of road chatter. Not a good option for those looking for comfort.
2. The ovalized top adds to the comfort.
3. The shallow drop has a more ergonomic (short) reach that makes moving from hoods to drops and back easy!
4. Slightly more expensive than other comparable bars, but well worth it!
One thing to remember with Zipp handlebars - Unlike other manufacturers, Zipp measures their handlebars from outside edge to outside edge, as opposed to center-to-center. So if your current bar is 40cm, then you need to buy 42cm in Zipp (go up one size).