The 11-speed DURA-ACE Di2 shifting system ensures ergonomic, stable and effective shifting thanks to a low-profile design and SHIMANO Shadow RD. Due to its clever design, it can accommodate cassettes with a gear ratio of 11-30.

Synchronized Shift enables more efficient gear changes while driving. The function offers numerous advantages such as faster, more precise gear changes in all driving conditions and minimizes the load on the drive.
When Synchronized Shift is turned on, the rear and front derailleurs can be controlled with a single switch. With Synchronized Shift fully activated, the front derailleur will sense the position of the rear derailleur and automatically shift to the most efficient gear with the best chainline, so you never have to worry about front shifting or compensating shifts again.

With the Semi-Synchronized Shift function activated, you can shift the front derailleur manually, giving you optimal control in selecting the best gear combination for your riding style. The system automatically makes the necessary correction by automatically shifting to the correct rear gear with the best chainline.

Auto Trim
Flat profile: SHIMANO Shadow change
SHIMANO Synchro Shift
Total capacity: 33 teeth
Compact and clean look