Shimano Ultegra ST-R8170-LF Di2 Shift/Brake Lever - Left 2x Black Rise-20mm Hexagonal anti-roll feature prevents any

Hexagonal anti-roll feature prevents any bothersome rolling away at the workplace

Price: less expensive replacement chainrings

Select between 4

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

The Utopia has become a big hit with flatlanders and recently street riders looking for a smaller more responsive setup

Shimano Ultegra ST-R8170-LF Di2 Shift/Brake Lever - Left 2x Black Rise-20mm Hexagonal anti-roll feature prevents anyShimano'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