Shimano 105 -ST-R7120 Dual Control Levers feature a revised lever position and bracket shape developed using data from a broad study of different hand shapes. Shifting is quick and intuitive to provide cyclists what is expected from Shimano 105. That’s combined with the all-condition confidence of a BR-R7170 flat mount hydraulic disc brake system ideal for road bikes.Features-For use with 160mm rotor (sold separately)-Mechanical dual control lever with updated ergonomics offers light shifting operation that lets cyclists focus on the road ahead-Blade shape creates shorter lever access curve allowing riders with a wide range of hand sizes and shapes to comfortably reach their levers-Reach Adjust allows riders to customize their fit-BR-R7170 flat mount caliper is compact and light-10% wider pad clearance decreases the chance of disc brake rotor rub and provides clearance for easy wheel removal-One-way bleeding for easy and clean maintenance-Includes L05A-RF resin pads with finned backplate that help reduce heat build upItem Specifications-Brake Lever Actuation:Hydraulic-Double or Triple:Double-Rotor Included:No-Color:Black-Brake Caliper Mount:Flat Mount-Hydraulic Fluid Type:Mineral Oil-Brake Lever Use:Left-Pad Compound:Resin-Hydraulic Hose Length:1000-Includes Brake:Disc-Brake Type:Disc-Adjustable Reach:Yes-Drivetrain Speeds:12-Defined Color:Black-Front Der/Shifter Compatibility:Shimano Road