SRAM Disc Brake S300, Front Caliper, Right Lever, Flat Mount 20mm Offset, 950mm hose (Rotor sold separately)Power, reliability, light weight, and a flat mount caliper. This brake has it all. Top class modulation and a consistent bite point will inspire confidence for many miles.
Flat mount for flat bar
Same proven lever technologies 
as Guide: piston, seals, reservoir, and bladder
Compact lever body with DirectLink
Technology:DirectLink, Timing Port Closure, Expandable Bladder