Shimano Ultegra ST-R8170-LF Di2 Shift/Brake Lever - Left 2x Black Rise-20mm 50mm Offset (Size 47–51) /

50mm Offset (Size 47–51) / 45mm Offset (Size 54–61)

Color Black Number of Chainrings No Rings Included Crank Length (mm) 175 Crank Intended Use Mountain BB Included No Pedal Spindle 9/16" Spindle Interface Type RaceFace EXI Chainring BCD Direct Mount CINCH Chainline/Hub Compatibility 135/142 MTB Hubs Chainline/Hub Compatibility 141/148 Boost Hubs Chainline/Hub Compatibility 150/157 DH Hubs Defined Color Black keyword search RXC137

To maximize ride feel without compromising comfort Enve handlebar tape is 3 millimeters thick with a vibration damping silicon backer strip that ensures comfort for long miles over rough roads

Hub/Disc Compatibility Center-Lock Rotor Size (mm) 140 Rotor Type Two Piece keyword search AXS

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Shimano Ultegra ST-R8170-LF Di2 Shift/Brake Lever - Left 2x Black Rise-20mm 50mm Offset (Size 47–51) /Shimano's Ultegra ST R8170 brake levers bring enhanced modulation and control to every ride by employing Shimano's proven SERVO WAVE technology. The Di2 platform untethers the shifters while delivering fast and reliable wireless shifting. Your time on the bike is precious let Shimano make it even better. The wireless connection provides a clean cockpit enhancing the aerodynamic effect and easy maintenance Unparalleled ergonomics engineering refined