- 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 in SFL (Small Finger Lever) - ergonomically tailored for the smaller hand.
- Weight: 310g (100cm hose and mount hardware)
- DOT 5.1 Fluid
- Tool-Free Reach Adjustment
- 2-Stroke Dual Port Bleed System
- Sealed Cartridge Bearings Lever Pivot
- 100cm Front Hose Length
- 180cm Rear Hose Length
- Rotors and Brackets not included
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Unfortunately, there isn't any review yet. Be the first one and share your experiences with thousands of other riders! 😀 - Show all items from HayesHayes Bicycle Group is a manufacturer of high-performance bicycle components, including disc brakes. The company was founded in 1991 and is headquartered in Grand Rapids, Michigan. Over the years, Hayes has established a reputation for producing durable and reliable disc brake systems for a variety of cycling applications, from cross-country mountain biking to downhill racing.
Hayes offers a wide range of disc brake models to suit different riding styles and preferences, including hydraulic and mechanical systems. Their hydraulic brakes use a closed system of mineral oil to transmit braking force from the lever to the caliper, resulting in a smooth, consistent feel and increased modulation. Their mechanical disc brakes, on the other hand, use a cable actuation system, making them more economical and easier to maintain.
One of the key features of Hayes disc brakes is their use of four-piston calipers, which provide more stopping power than traditional two-piston designs. This makes them ideal for use on steep and technical terrain, where stopping power is essential. Additionally, Hayes uses high-quality materials in the construction of their disc brakes, such as heat-treated aluminum and stainless steel, to ensure durability and longevity.
Hayes also places a strong emphasis on product development and innovation, and they regularly release new and improved disc brake models. For example, their latest hydraulic disc brake system, the Code RSC, features a more compact design, improved modulation, and increased power, making it a popular choice among mountain bikers and enduro riders.
In conclusion, Hayes Bicycle Group is a respected and trusted name in the bicycle industry, known for producing high-quality disc brake systems for a variety of riding applications. With a commitment to innovation, quality, and durability, Hayes continues to set the standard for disc brake technology in the cycling world.
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