Shimano Ultegra R8000 2 x 11-Speed Front Derailleur, Braze-On Your front derailleur is the gateway to half of the gears on your bike, and its ability to shift swiftly, accurately, and in a measured fashion can be the difference between a personal best or a dropped chain and oily hand. With the Shimano Ultegra R8000 2 x 11-Speed Front Derailleur, Braze-On, you can be sure of the greatest level of precision possible, and shift seamlessly across your chainset. With an improved link construction that accurately mimics the force curve of the hand action during the gear shift, you can be sure of a smooth swinging action across the chainset, providing that measured and precise movement that you need to engage and drive onwards. Compatible with chainsets with a top-end range of 46-53T, this front derailleur is a braze-on, assuring you of a rigid and stable base. A lighter shifting operation making this an easier prospect when flicking to the big ring, the new link construction also allows for a more flexible cable routeing design, allowing you the ability to adjust your tensions manually with ease, and without purpose-made tools.