One of the major changes in Shimano's new Ultegra R8000 front derailleur is a more compact, built-in arm for better integration and clearance for wider tires and a new feature that allows for fine-tuned cable adjustments. The clamp-on is easy to set up, offers multiple cable routing options, and features a natural front shift lever stroke and increased ergonomic power curve.Features: Lighter and intuitive shifting Fine tune cable adjustments Allows for wider tire clearance Multiple cable routing options Ergonomic power curve Easy to set up