With XTR M9050 Di 2, front shifts require very little effort, with the swift tap of a button already at your fingertip. The digital control of Shimanos front derailleur means that the exact same input is used for each & every shift, the definition of reliability. Computer controlled auto trim means that you can remain focused on the trail ahead. The FD-M9050 is also Shimano Synchronised Shift compatible, so if you choose, a single shifter can control both front & rear shifting, custom tuned to your preferences. Key Features More powerful shifting (+25% compared to M9000) Computer controlled auto trim Shimano synchronised shift compatible System communication with rear derailleur Modular mounting structure (adaptors optional) Reliable gear changes under load Optimised Di 2 cage profile & gear tracking Manual control available (2nd shifter required) Advantage in all conditions