1. Special inner cage DeSign: - greater rigidity - faster shifting - more space for the chain crossovers.2. outer cage with ultra-ShiFttm DeSign: maximum cage stiffness – speed and precision of shifting.3. excluSive campagnolo® Front Derailleur boDy:designed to make the system stiffer – improves the speed and precision of shifting.cSD (chain Security Device):the CSD chain security device achieves extremely high stiffness levels, in addition to offering regulation that is completely independent from that of the derailleur. Compatible with all the braze-on derailleurs from the Campagnolo range.Front Derailleur mounting tool:to ensure perfect installation that will permit your new Campagnolo®drivetrain performs flawlessly, Campy Tech LabTM engineers have developed a tool that calibrates the exact position for the front derailleur in relation to the chainrings. Faster installation with better results, this mounting tool makes the mechanics job easier and more exact.