Hayes Dominion A4 Disc Brake

The Dominion four-piston hydraulic disc brake has been developed for the rigors of DH and enduro riding provide. Designed with a specific lever pull curve to balance on-demand pressure modulation, providing firm engagement between the pads and rotors, optimized for the world’s most demanding conditions and riders.

• Low-effort lever input, coupled with high-fidelity power output for optimum braking feel and control
• Pre-bled and assembled with Hayes K2 hose: The stiffest hose possible for maximum power and control transmission
• Brake includes two specific pad brake pads, intentionally developed to be paired with the new D-series rotor for fast, consistent burnish, predictable friction rate, and consistency across temperature and speed conditions
• Both pad compounds are included: Semi-Metallic T106 (standard) and Sintered T100 (wet conditions)
• Brake levers are "flip flop" design, meaning the levers are symmetrical for both sides of the handlebars. For example, you can use the Right/Rear brake as your front left since the lever is symmetrical and the hose is very long. You can technically use the Front/Left as the rear brake but you will need to install a new hose since the hose is shorter out of the box for the shorter front hose length.
  
  

Not included, but recommended with Hayes Dominion A4 Brakes:

• Hayes D-Series Rotors 
• Hayes Bleed Kit
• Also compatible with the SRAM Pro DOT Bleed Kit which is much nicer. 
• We highly recommend using Hayes Brake Adapters because the oversized calipers can cause compatibility issues with non-Hayes brake adapters.
• Replacement Brake Pads for Hayes Brake