The Avid BB7 MTB S Mechanical Disc Brake has power, control and strikingly good looks. That’s the story with the BB7 S 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 BB7 S Mountain is the no-brainer performance. You get smooth, modulated power and control plus user-friendly setup and adjustability. And the lightweight HS1 rotors keep the weight in check so the performance boost applies to climbs as well as descents.