Shimano CUES FD-U4000 9/10-Speed Double Front Derailleur The Shimano CUES FD-U4000 9/10-Speed Double Front Derailleur is crafted for those who enjoy mid-grade cycling. This derailleur is part of the CUES range, known for its compatibility, versatility, and durability. Key Features Utilises LINKGLIDE technology, offering up to 300% more durability than the current Hyperglide drivetrain, ensuring smooth shifting. Features a side swing, front pull design to improve tyre clearance and reduce cable friction. Specifically designed for modern bikes, enhancing tyre clearance and providing the lightest shifting action with Shimano's side swing technology. Wide pivot link design enhances torsional rigidity, improving shifting response and extending service life. Direct mount frame fit for easy installation. Suitable for bike designs with a 64-69 degree chainstay to seat tube angle. Compatible with double 40-26/36-22 tooth chainrings. Works with 10/9-speed LINKGLIDE drivetrains. Chainline options of 48.5/51.8 mm. To configure your CUES groupset, use the easy-to-use chart. Simply fill in the bike type and speeds required, then select the components you need. For more information on the CUES range, watch our introduction video.