Hayes Dominion A4 Brake Set Rear

Availability: In stock


Hayes brand new brake for 2018 - the Dominion A4
Four piston caliper with cross-hair alignment
Flippable lever with reach adjustment
Dead stroke is factory set
Pre-bled with 180 cm hose for rear use
Uses DOT 5.1 fluid
Fits 74 mm post mount brackets and adapters
Works best with Hayes D series rotors

Available direct from Shockcraft or via your local bike shop



In 1998 Hayes rocked the MTB world with their HFX-MAG disc brake and set the mounting standards used today.  20 years later, after 4 years of development and testing, they release the Dominion - a ground-up designed 4 piston brake offering immense power and control to take on the best brakes in the market today.

Reviewed by Richard Cunningham at Pinkbike:
  • “Lever feel is comfortable with or without gloves and its action is smoother than Shimano's or SRAM's best.”
  • “The Dominion's predictable pad contact and proportionate braking response provided next-level control during maximum braking events, especially where traction was iffy.”
  • “The Dominion brake is a winner in every sense . . . If you are in search of a good brake, start with this one.”