Hayes Dominion A4 Brake
Rear brake, Brake kit, 4Colour
Product details
Dominion A4 Brake Kit
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.
The Dominion A4 features the proprietary QuickBite² system for fast and consistent burnish, coupled with our D-Series rotor to manage heat with less braking noise.
Available in SFL (Small Finger Lever) - ergonomically tailored for the smaller hand.
Rotors and brackets not included.
Weight: 310g (100cm hose and mount hardware)
Reach adjust: Tool-free
Pad contact adjust: Tooled
Lever orientation: Flip-flop
Hose: Low expansion with Kevlar weave
Rotor: D-Series (160, 180, 203 w/ QuickBite² & MRC)
Lever pivot: Sealed cartridge bearings
Pad material:
T106 Semi-Metallic
T100 Sintered Metallic
Pad insertion: Top load
Pad retention: Pad pin
Fluid: Hayes DOT 5.1
Alignment: Crosshair.
Operation | Hydraulic |
Brake type | Rear wheel brake |
Number of brake pistons | 4 |
Brake category | Brake kit |
Item number | 25222912 |
Manufacturer | Hayes |
Category | Disc brakes |
Manufacturer no. | 95-36115-K052 |
Release date | 19.4.2023 |
Colour | Bronze |
Exact colour description | Bronze |
Operation | Hydraulic |
Cable length | 100 cm |
Brake fluid | DOT 5.1 |
Brake type | Rear wheel brake |
Brake category | Brake kit |
Brake lever functions | Handle width adjustment |
Number of brake pistons | 4 |
Country of origin | France |
CO₂-Emission | |
Climate contribution |
Scope of delivery | excl. rotors and brackets |
Weight | 310 g |
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Reviews & Ratings
Warranty score
How often does a product of this brand in the «Disc brakes» category have a defect within the first 24 months?
Source: Digitec Galaxus- HayesNot enough data
- 1.Sram0 %
- 2.BGS0.1 %
- 3.Shimano0.6 %
- 4.Magura1.2 %
Warranty case duration
How many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?
Source: Digitec Galaxus- HayesNot enough data
- 1.Shimano1 day
- 2.Magura5 days
- BGSNot enough data
- SramNot enough data
Return rate
How often is a product of this brand in the «Disc brakes» category returned?
Source: Digitec Galaxus- HayesNot enough data
- 1.BGS2.5 %
- 2.Magura2.6 %
- 2.Shimano2.6 %
- 4.Sram4 %