Hayes Dominion A2 Disc Brake

The A2 is specifically engineered for cross-country and trail riding. Its two-piston design prioritizes a balance of weight and responsive power, making it ideal for riders who want efficiency and control on faster, less technical terrain rather than the raw stopping power required for aggressive enduro or downhill riding.

Yes, the A2 features a tool-free reach adjustment. You can easily dial in the lever position to match your hand size or personal preference while out on the trail without needing an Allen key.

The Hayes Dominion A2 uses DOT fluid. It is important to use the specific DOT fluid recommended by Hayes to ensure the seals and internal components function correctly and maintain their longevity.

The Crosshair system uses small set screws on the caliper adapter to fine-tune the caliper's position over the rotor. This allows you to center the caliper perfectly without having to loosen and retighten the mounting bolts repeatedly, which helps eliminate brake rub.

QuickBite² is a proprietary pad burnishing process that pre-conditions the pads at the factory. It significantly shortens the break-in period, meaning you will experience consistent, full stopping power much sooner after installation compared to standard brake pads.

Yes, the levers feature a flip-flop design, meaning they are ambidextrous. You can easily orient them to match your preferred brake setup regardless of which side you prefer for your front or rear brake.