Hayes Dominion A4 Disc Brake – Regular Reach

Introducing the all-new, award-winning Hayes Dominion A4 Disc Brake. Adding even more ways for you to stop! Experience the lightest lever pull on the market combined with incredible power. Available now at Grip & Pedal.

The Dominion A4’s feature flip flop levers and single hose length of 180cm. For a pair of brakes order a quantity of two.

Get the ultimate in stopping power, favoured by Pro riders around the globe. Including 2023 UCI Downhill MTB World Champion Charlie Hatton.

Dominion’s master cylinder is factory tuned for the shortest dead stroke possible and a crisp bite point. The Dominion A4 calliper utilises four pistons in the most structurally rigid design possible. It features a cold-forged calliper 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.

These Dominion’s are the regular reach lever. Also available is the SFL (Small Finger Lever), ergonomically tailored for the smaller hand.

Features:

• Tool-Free Reach Adjustment.
• Flip-Flop Lever Orientation.
• King Pin Pad Retention.
• Crosshair Calliper Alignment.
• Two-Stroke Dual-port bleed system.
• Two Sets of Pads Included. Semi Met installed Sintered in the box.

Specifications:

• 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.
• 180cm Hose Length.