Hayes Dominion A4 Brake LE Purple RRL

Dominion A4 Brake Set Limited Edition Purple
Lever with standard reach

The main cylinder of the Dominion is factory-tuned for the shortest possible dead stroke and a clear response point. The Dominion A4 brake caliper uses four pistons in a structurally stiff design. It features a cold-forged caliper and a KingPin pad retention screw that increases stiffness. With a motorsport-inspired two-stroke bleeding system with two ports, industry-leading DOT 5.1 fluid, and a Kevlar hose, the hydraulic system is designed for ultimate performance at all temperatures and easy maintenance.

The Dominion A4 features the proprietary QuickBite² system for fast and even polishing, paired with our D-Series rotor to manage heat with less brake noise. Available in SFL (Small Finger Lever) – ergonomically designed for smaller hands. Rotors and mounts are not included.

Weight: 310 g (100 cm hose and mounting hardware)
Reach adjustment: Tool-free
Pad contact adjustment: Pre-installed
Lever orientation: Flip-flop
Hose: Low expansion due to Kevlar fabric
Rotor: D-Series (160, 180, 203, 220 with QuickBite² and MRC)
Lever pivot point: Sealed cartridge bearings

Pad material:
T106 Semi-metallic
T100 Sintered metal

Pad insertion: Top-load
Pad retention: Pad pin
Fluid: Hayes DOT 5.1
Alignment: Crosshair.