Why don't you look at the Modolo OXO stem? It's the same kind of principle, even sharper in my opinion, and comes with a 25.4 clamp (perfect for track bars) and a 1-1/8" steer clamp. Very slick stem. Looks like it was designed by Calatrava. Here's a pic:

http://www.fahrraeder-online-kaufen....modolo-oxo.php

I have a brand new 13 cm one if you're interested. Still in the box.