What Our Gearhead® Experts Are Saying: “These are my go-to mechanical disc brakes when I want something simple, tough, and consistent. The Tri-Align system makes setup a breeze, and they’re perfect for riders who want solid braking without the complexity of hydraulics.”The Avid BB5 MTB Disc Brake brings straightforward reliability to your mountain bike with a proven design that balances strength, simplicity, and control. Featuring Avid’s Tri-Align Caliper Positioning System, these brakes make alignment quick and painless so you can dial in consistent performance with minimal fuss. The mono-block caliper construction keeps weight down while maintaining durability, and an external pad adjustment knob lets you fine-tune your braking feel on the fly. Whether you’re upgrading a trail bike or building up a commuter that can handle rough conditions, the BB5 delivers confidence without complication.