This image should give you a good idea of what the Sigma is all about. But the best part about it is, this is a PHOTOGRAPH, not a computer-generated graphic. This image is true to scale, and shows the rather striking difference in frontal area between the Sigma and a traditional stem.
The Sigma stem is currently in development, and will soon be available at this link in the TriRig Store.
The TriRig Sigma is the first production stem built to provide superlative aerdynamics, elegant cable management, and integrated centerpull cable routing for aero brakes like our own Omega. This is TriRig's next production project, and it's going to significantly clean up the traditional front end to a degree previously achieved only in the realm of the so-called 'superbikes.'