Dominion A4 Brake
by Hayes
Description Hayes Dominion, our award-winning A4 brakes available in Stealth Black or Bronze – adding even more ways for you to stop! Dominion's master cylinder is factory tuned for the shortest dead stroke possible and a crisp bite point. The Dominion A4 caliper utilizes 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 our D-Series rotor to manage the heat with less braking noise. Also available in SRL (Short Reach Lever) - ergonomically designed for the smaller hand or short reach level positioning.

Details
- Type
- disc_brake
- Discipline
- mountain
- Price
- $249.99
- Sale price
- $249.99
- Weight
- 310g
- SKU
- 95-36115-K004
- Availability
- in stock
Specs
- Actuation
- hydraulic
- Mount type
- post_mount
- Max rotor size (mm)
- —
- Piston count
- 4
- Hydraulic fluid
- DOT 5.1
Full specs (JSON)
- Pad type
- sintered/metallic
- Reach adjust
- Yes
- Contact point adjust
- Yes
- Lever material
- aluminum
- Piston diameter mm
- 17
- Bleed system
- Two-Stroke dual port
- Hose material
- kevlar
- Notes
- 4x 17mm pistons; 310g official Hayes spec for caliper+lever without hose; 74mm post mount
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