The Tiagra ST-4700 dual control lever features Reach Adjust and and an ergonomic form that is compatible with 2x10 speed drivetrains. 's OPTISLICK cables feature a minimal and uniform electrically coated layer that improves cable routing efficiency and provides excellent corrosion resistance. SUPER SLR design makes use of a friction-reducing mechanism lever and cable that improves response and modulation. Reach adjust mechanism allows for the lever to be adjusted for any hand size, type of riding, or individual preference. OT-SP41. Item Specifications: Drivetrain Speeds: 10, Brake Lever Actuation: Short Pull Super SLR, Cassette Spacing: RD 10, Adjustable Reach: Yes, Includes Brake: No, Rear Der/Shifter Compatibility: Road,