Avid Disc Brake BB7 MTB S Graphite CPS (Rotor/Bracket sold separately):

Power, control and strikingly good looks. That’s the story with the all-new BB7S Mountain mechanical disc brakes from Avid. This update on the well-established BB7 Mountain includes new stainless steel hardware and sleek black anodizing that makes them look as fast as you’ll feel. Part of the beauty with the BB7S Mountain is the no-brainer performance. You get smooth, modulated power and control plus user-friendly setup and adjustability. And the lightweight rotors keep the weight in check so the performance boost applies to climbs as well as descents.