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Hayes Dominion A4 SFL Disc Brake - rear, black/bronze

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Delivery time to United States 2-4 weeks

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Description of Hayes Dominion A4 SFL Disc Brake - rear, black/bronze

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.





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



Please pay attention to the max. permitted disc diameter depending on your fork!

The brake caliper can directly be mounted to Postmount forks if a 160 mm disc is used. For bigger disc diameters or IS2000 forks an adapter is required.
Rear version!

Included in delivery: one brake incl. lever, hose and bolts, filled and bled
no rotor or adapter included
Weight supplement: manufacturer information

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Fact Sheet of Hayes Dominion A4 SFL Disc Brake - rear, black/bronze

Product Name: Hayes Dominion A4 SFL Disc Brake - rear, black/bronze
Manufacturer: Hayes
Item Code: HAY483227
activity: Bike
material: Aluminium
usage bikesport: E-Bike, MTB, Enduro, Downhill, All-Mountain
brake actuation: hydraulic
brake fluid: DOT 5.1
disc brake version: Rear Wheel
adapter (mount to brake): PM to PM
brake caliper: Postmount
Model year: 2021
Color: Black, Brown
weight: 310g
manufacturer item code: 95-36115-K052
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