This item is a single brake kit, coming with a 180cm hose suitable for use on the rear or front with the hose cut to size. Includes 1x lever and caliper, 2 sets of pads (1x sintered, 1x semi-metallic).
Introducing the all-new Stealth Dominion, Hayes' award-winning Hayes Dominion A4 brakes are back – adding even more ways for you to stop! The Dominion's master cylinder is factory tuned for the shortest dead stroke possible and a crisp bite point. The Dominion A4 caliper utilises four Ø17mm 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 Hayes' D-Series rotor to manage the heat with less braking noise.
Low Input - High Fidelity (LoFi)
This is a low effort system with predictable, progressive ramp up and a crisp bite point.
Technical Features
Reduced Friction: A featherlight lever feel is achieved through a combination of an added glide ring on the piston and sealed ball bearings at the lever blade pivot.
SRL: Hayes' Stable Rate Link delivers a consistent lever ratio regardless of reach.
Precise Engagement: Each Dominion is factory set to have the lowest dead stroke possible and a crisp bite point.
Built to Last: Metal pistons are used to ensure that no matter the terrain or temperature the brake will continue to perform as it did on the first ride.
Adjustable Reach: Adjust your lever reach with ease while on the trail thanks to an intuitive adjustment knob design.
Modal Resonance Cancellation (MRC)
FEA-optimised modal shapes of D-Series rotors are intentionally designed to oppose those of Semi-Met T106 and Sintered T100 pads, cancelling out noise and vibration.
Product Details:
- Reach Adjustment: Tool-free reach adjustment.
- Lever Orientation: Flip-flop lever orientation.
- Pad Retention: KingPin structural pad retention bolt adds strength.
- Caliper Alignment: Crosshair caliper alignment.
- Bleed System: Two-stroke dual-port bleed system.
- Fluid Type: DOT 5.1 fluid.
- Bearings: Sealed cartridge bearings at the lever pivot.
- Hose: Kevlar hose with 180cm hose length.
- Caliper Piston Diameter: 17mm.
- Weight: 310g (100cm hose and mount hardware).