Hayes Dominion A4 Disc Brake

It excels at both. The 4-piston design provides the raw stopping power necessary for high-speed downhill runs, while the refined lever feel and modulation make it equally capable for technical enduro trails where control is paramount.

No, the rotors are sold separately. You will need to purchase compatible rotors based on your bike's frame and fork requirements.

Semi-metallic pads offer a more immediate bite and quieter operation, making them great for general trail riding. Sintered pads are more durable and perform better in wet, muddy, or high-heat conditions, which is why they are often preferred for aggressive downhill riding.

Yes, the Dominion A4 is designed to be versatile and can be installed as either a front or rear brake. Just ensure you have the correct hose length and mounting adapters for your specific frame and fork setup.

This system uses DOT 4 hydraulic fluid. It is important to use the specified fluid type to ensure the seals and internal components function correctly and reliably over time.

The lever is engineered for minimal dead stroke, meaning you get a very sharp, predictable bite point. The pull curve is tuned to balance that immediate engagement with a nuanced feel, which helps reduce hand fatigue on long, demanding descents.