Hayes Dominion A4 Rear Disc Brake

Hayes 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.

Available with standard lever or short lever (for small hands)

Features

• Flip Flop Lever Orientation
• Tool Free Reach Adjustment
• Pad contact adjustment with Hex key
• Sealed Cartridge Bearing Lever Pivot
• Lower effort system with predictable, progressive ramp up and a crisp bite point
• 4 pistons caliper
• Lever available in standard or short (for small hands)
• King Pin pad retention bolts adds strength
• Crosshair alignment system for quick and accurate setup
• 2 stroke dual port bleed system with dual port bleed port for maximum bleed integrity
• Hose length : 180 cm
• Pads installed : Semi Synther
• Included pads : Synther
• Lifetime warranty for oil leeking

Included

• 1 x Hayes Dominion A4 ready for use
• 1 x hose shortening kit
• 1 x synther brake pads