Hayes Dominion T4 Disc Brake - Front

The best just got better. The limited-edition Hayes Dominion T4 packs the power, sensitivity, and reliability the Dominion family is known for into its lightest chassis yet. Featuring a Reynolds designed and in-house produced carbon-fiber lever, titanium hardware, composite reservoir cover, pads with aluminum backing plates, and precise weight-reducing machining.

LOW INPUT - HIGH FIDELITY (LOFI)

Low effort system with predictable, progressive ramp up and a crisp bite point.

LOADED WITH TECH

Reduced Friction - A featherlight lever feel is acheived through a combination of an added glide ring on the piston and sealed ball bearings at the lever blade pivot.

SRL - Our 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 your 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 intuive adjustment knob design.

MODAL RESONANCE CANCELLATION (MRC)
FEA-optimized modal shapes of D-Series rotors are intentionally designed to oppose those of Semi-Met T106 and Sintered T100 pads, canceling out noise and vibration.

Crosshair Caliper Alignment screws allow for quick and accurate setup.

King Pin pad retention bolt adds strength.

2-Stroke dual port bleed system for maximum bleed integrity.

FEATURES

• Tooled Reach Adjustment
• Tooled Pad Contact Adjust
• Axial Lever Orientation
• K2 Hose
• Crosshair Caliper Alignment
• Composite lever & reservoir cover, titanium hardware

SPECIFICATIONS

• Weight: 257g (90cm hose & mount hardware)
• Reach adjust: Tooled
• Compatible Rotor (not included): D-series (160, 180, 203) w/ QuickBite² and MRC
• Hose: Low expansion with Kevlar weave
• Fluid: Hayes DOT 5.1
• Bleed: Two Stroke
• Caliper Piston Size: 17mm
• Pad Material: T106 Semi-metallic, T100 Sintered metallic
• Pad retention: KingPin
• Pad Insertion: Bottom Load
• Crosshair Alignment: yes
• 2-piece Clamp: yes
• Pad Contact Adjust: Tooled
• Adjustable Banjo Connection: Yes
• Flip-Flop Lever: Yes
• Lever Pivot: Sealed Cartridge Bearings