The next generation is here. Evolution never stops! With Ultegra Di 2 technology shifting is easy & precise. Taking shifting to a new level only a light touch is needed for the front or rear derailleur to instantaneously select the correct gear. Ergonomic design ensures an easy transition from mechanical to electronic shifting & you'll never look back. Cable tie for internally routed EW-SD50 Di 2 wires. Key
Features: Used to stop movement inside the frame. Helps to reduce noise. Pack of 20.