Thanks to the Ultra-Shift geometry of the cage typical of all the Campagnolo 11-speed groupsets, the chain can move between the gears of the crankset with the maximum speed and precision in any situation, even when "chain crossing" is extreme or under stress. The new Athena front derailleur is compatible with both standard and compact cranksets. FEATURES & BENEFITS OUTER CAGE WITH ULTRA-SHIFT DESIGN: maximum cage stiffness - speed and precision of shifting Z-SHAPE INNER CAGE: high stiffness and greater efficiency and precision of shifting M-BRACE FRONT DERAILLEUR BODY: designed to make the system stiffer, improves the speed and precision of shifting SURFACE TREATMENT: reduces friction and prolongs the life of the component * For double standard and CT crankset * Capacity 16T difference * Max. chainring 54T * Min. chainring 34T * Chrome-plated nickel fork * Anti-friction insert * M-brace body * Even-O clamp * Z-shape lower cage