CENTOS SB-R502B / SB-R502E (2X10 SP) - Dual Control Levers. - Road bikes. - Model No.: SB-R502B or SB-R502E - Handle Bar Type: Drop Bar. - Cassette Compatibility: 10 speed. - Front Shifting: Double. - Bracket Material: Engineering Composite. - Brake Lever Material: Anodized Cold Forged Aluminum. - Shift Lever Material: Resin Steel. - Trimming Function for Front: Yes. - Brake lever reach adjuster: Screw Type 0 - 12mm. - Replaceable Hood Cover: Y-SB05. - Clamp Band: 23.8 - 24.2mm. - Shift Cable: Stainless Slick. - Weight: 498g. - Color Option: Anodized Black / Piano White. - Compatibility SB-R502B: Shimano Tiagra 4700 - Compatibility SB-R502E :Shimano Ultegra 6700; 105 5700; Tiagra 4600