Shimano 105 FD-R7100-F Front Derailleur - 12-Speed Double Braze-On Down-Swing Down-Pull 52t MaxThe Shimano 105 FD R7100 series of 12 speed front derailleurs feature light front shifting smooth and natural shift action and Shimano toggle link construction with an optimized cage design that is seamlessly compatible with disc brake road bikes. Light front shifting operation with smooth and natural shift action Toggle Link construction is light action with short lever movement and less effort at the end of shifting stroke Precise and easy front