The Dominion four-piston hydraulic disc brake has been developed for the rigors of DH and enduro riding provide. Designed with a specific lever pull curve to balance on-demand pressure modulation, providing firm engagement between the pads and rotors, optimized for the world&';s most demanding conditions and riders. Low-effort lever input, coupled with high-fidelity power output for optimum braking feel and control Pre-bled and assembled with Hayes K2 hose: The stiffest hose possible for maximum power and control transmission Brake includes two specific pad brake pads, intentionally developed to be paired with the new D-series rotor for fast, consistent burnish, predictable friction rate, and consistency across temperature and speed conditions Both pad compounds are included: Semi-Metallic T106 (standard) and Sintered T100 (wet conditions) Brake levers are "flip flop" design, meaning the levers are symmetrical for both sides of the handlebars. Brake hoses are 180cm long to accommodate use in front or rear positions. Not included, but recommended with Hayes Dominion A4 Brakes: Hayes D-Series Rotors Hayes Bleed Kit Also compatible with the SRAM Pro DOT Bleed Kit which is much nicer. We highly recommend using Hayes Brake Adapters because the oversized calipers can cause compatibility issues with non-Hayes brake adapters. Replacement Brake Pads for Hayes Brake If you need help finding the right brake adapters for your new brake and rotor setup, check out our Brake Adapter Fitment Guide to make sure you get the right adapters!