Shimano Ultegra ST-R8170-LF Di2 Shift/Brake Lever – Left, 2x

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.