Avid BB7 Road Disc Brake Caliper w/ G2 Rotor

If you have a disc-compatible 'cross or road frame and you're still running rim brakes, it might be time to consider replacing them with the Avid BB7 Road Disc Brake Caliper and G2 Rotor. Avid's two-piece forged aluminum caliper has an easy-to-use Tri-Align system that makes it easy to increase or decrease stopping power in just a few minutes, and comes with a G2 Clean Sweep rotor that serves up serious all-weather stopping power without the sketchiness or delay of rim brakes. The rotor is available in 140mm or 160mm, attaches with a classic six-bolt configuration, and is designed to work well with short-pull road brake systems.