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Hayes Dominion A4 Disc Brake and Lever

Hayes Dominion A4 Disc Brake and Lever
  • Color: Black/Bronze
  • Color: Stealth Black/Gray
$199.99 - $249.99
Please select options


Introducing the all-new, Stealth Dominion, our award-winning Hayes Dominion A4 brakes are back – adding even more ways for you to stop!

Dominion's master cylinder is factory tuned for the shortest dead stroke possible and a crisp bite point. The Dominion A4 caliper utilizes four pistons in the most structurally rigid design possible. It features a cold-forged caliper and KingPin structural pad retention bolt that increases stiffness.

With a motorsports-inspired Two-Stroke dual port bleed system, industry-leading DOT 5.1 fluid and Kevlar hose, the hydraulic system is engineered for ultimate performance across all temperatures and easy maintenance.

Dominion A4 features the proprietary QuickBite² system for fast and consistent burnish, coupled with our D-Series rotor to manage the heat with less braking noise.

Available in SFL (Small Finger Lever)—ergonomically tailored for the smaller hand.

Key Features:
- Tool-Free Reach Adjustment
- Flip-Flop Lever Orientation
- King Pin Pad Retention
- Crosshair Caliper Alignment
- Two-Stroke Dual-port bleed system

- 310g (100cm hose and mount hardware)
- DOT 5.1 Fluid
- Tool-Free Reach Adjustment
- 2-Stroke Dual Port Bleed System
- Sealed Cartridge Bearings Lever Pivot
- 100cm Front Hose Length
- 180cm Rear Hose Length

Part Numbers

Option UPC MPN Store SKU
Black/Bronze / Front / 1000mm Hose 844171072981 95-36115-K001
Black/Bronze / Rear / 1800mm Hose 844171072998 95-36115-K002
Stealth Black/Gray / Front / 1000mm Hose 847863028778 95-36115-K003 HAY62840314H
Stealth Black/Gray / Rear / 1800mm Hose 847863028785 95-36115-K004 HAY61555851H