Avid takes entry level to a whole new level with the BB5s, which feature ball bearings (where the BB comes from in the name), a melt-forged body and a CleanSweep rotor for excellent stopping power and awesome durability. Plus, an inboard pad adjustment knob lets you dial in the perfect distance between the rotor and the pads, while Avid's ingenious Tri-Align caliper-positioning system perfectly aligns the pads parallel to the rotor in seconds. And, the tool-free pad replacement and adjustment makes quick work out of accommodating for pad wear, so you always have positive, powerful braking.

Avid's Rear 170mm Post Bracket Hardware Kit has everything you need to mount a 170mm rotor (sold separately) to the back of your bike. Kits include mounting bolts and a 30mm post mount spacer for rear brake installation.

Avid's BB7 MTN S Mechanical Disc Brake delivers with power, control, and a sleek black anodized finish that makes this brake look as fast as you feel. You'll love the simple cable pull system that's optimized for linear-pull levers. Avid's ingenious Tri-Align caliper-positioning system perfectly aligns the pads parallel to the rotor in seconds for powerful braking with positive modulation in any condition. This brake kit includes an HS1 rotor for solid stopping power.

Bolt on Avid's 20R Brake Pads for consistent, powerful braking. They're designed for use with linear-pull brakes.

To keep your Avid brakes functioning properly, check your pads for wear and replace them when necessary. Organic compound pads are softer for quieter braking and increased modulation, while metallic pads dissipate heat better and last a bit longer. Two pads, one retraction spring and a mounting bolt are included (enough for one brake) in each pad set. And, choose an aluminum backing plate if you're really counting the grams.

To keep your Avid brakes functioning properly, check your pads for wear and replace them when necessary. Organic compound pads are softer for quieter braking and increased modulation, while metallic pads dissipate heat better and last a bit longer. Two pads, one retraction spring and a mounting bolt are included (enough for one brake) in each pad set. And, choose an aluminum backing plate if you're really counting the grams.