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.

- Replacement barrel adjuster for FR5 and SD7 levers - Includes one pair

The industry standard cable-actuated disc brake since its introduction is still popular due to smooth ball bearing operation and ease of installation and maintenance. - All calipers have 74mm mounting bolt spacing - For use with short cable-pull levers - Pad retraction and spring tension are adjustable - Includes steel-backed sintered pads - Brake Caliper Type: Post Mount - Brake Lever Actuation: Short Pull - Hub/Disc Compatibility: 6-Bolt - Rotor Included: No - Weight: 204 g

Cost effective stopping power from the leader in cable-actuated disc brakes. - For use with short cable-pull levers - Mono-block caliper design has outboard pad adjustment - Spring tension is adjustable - Caliper has 74mm mounting bolt spacing; mounting adaptors are sold separately - Brake Caliper Type: Post Mount - Brake Lever Actuation: Short Pull - Rotor Included: No - Weight: 215 g

Avid, Post Bracket, Includes Stainless Caliper Mounting Bolts (CPS and Standard)

For the ultimate light-weight brake setup, Avid ditched the concentric caliper-centering washers and gave you titanium bolts to save precious grams. This kit includes ultra-light titanium hardware for standard (direct-mount) mounting.

Disc brake power, rim brake weights — at 170-grams per caliper Avid's BB7 Road SL brakes pack a punch in a flyweight package. Used with your road-style, drop bar levers, they provide precision actuation as well as tool-free pad wear adjustment and replacement. 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. Plus titanium mounting and rotor bolts shave even more grams on this great disc setup.