Hayes Dominion A4 Disc Brake and Lever

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
• Master cylinder is factory tuned for the shortest dead stroke possible and a crisp bite point
• Pre-bled and assembled with Hayes K2 Kevlar weave 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)
• D-Series rotors, caliper adaptors and bleed kit sold separately