The new Chorus rear derailleur benefits from Campagnolo 's top-of-the-range technology and design: it offers the same refinement and performance as the 12-speed Super Record and Record. With a few minor changes to the materials used in its construction, such as the aluminum connecting rod and outer cage, the Chorus version, which weighs just a few grams more, guarantees exactly the same performance as the two most expensive groupsets. Chorus is equipped with the same high-level technology, such as a new optimized trajectory on larger cassettes and the formidable 3D EMBRACE technology. The latest evolution of Embrace technology not only keeps the rear derailleur vertically aligned in the perfect position for each sprocket, but now also perfectly advances the top roller in the bike's direction of travel. 3D EMBRACE technology and 12-tooth rollers allow the rear derailleur to be adapted to all sprocket cassettes, as the distance remains optimal on each sprocket, regardless of the cassett....