Campagnolo Chorus Disc 12 speed Groupset features powerful hydraulic braking, carbon materials and smooth lightweight shifting making this performance groupset one of the best in its class and a competitor to Shimano's Ultegra groupset options. Please note, Campagnolo rotors are not supplied with the groupset. Campagnolo Chorus 12 Rear Derailleur The rear derailleur is a totally new design. The top jockey wheels sits in front of the cassette and very close too it ensuring maximum chain wrap around the sprocket engaged thus minimising wear and maximising shift speed and accuracy. The cassette range is wider. The shifters are not called Ergos for nothing and the thumb shifter has been positioned so downshifting from the drops is even easier than before (it was never hard). Chorus Front Derailleur The new Chorus derailleur incorporates the same design that separates the upper from the lower semi-rod, eliminating the free stroke for more immediate, responsive upshifting. Design of the 2...