The form of the aluminium and carbon fibre cage has been designed for the maximum strength.The titanium screws and inserts ensure lightness and strength over time. Ultra-Shift front derailleurs are more rigid while thanks to the new chain guide fork the operating speed and ease of use and adjustment are enhanced. Furthermore, the anti-friction treatment extends their lifetime. The fastening system has also been redesigned in the clamp versions for improved compatibility with the bicycle frame.
