Hayes Dominion T4 Disc Brake and Lever - Rear, Hydraulic, Post Mount, BlackThe Hayes Dominion T4 is optimized for Enduro and DH riding, with a USA made carbon lever blade, titanium fasteners throughout, and a strong clamping 4 piston caliper. Low effort lever input, coupled with high fidelity power output for optimum braking feel and control A carbon lever blade and titanium fasteners take Dominion performance to the next level. Pre bled and assembled with Hayes K2 hose: The stiffest hose possible for maximum power and