X1 Type 2.1 Rear Derailleur
Every detail of the 11-speed X1 X-HORIZON? rear derailleur is engineered for smooth, reliable shifting action-from the larger upper pulley offset to the 12-tooth X-SYNC? pulley wheels. By eliminating unwanted chain movement, X-HORIZON? shifts faster, puts an end to ghost shifting and reduces shift force and chain slap. And with CAGE LOCK? technology, wheel removal and installation are easier than ever.

- Speed (RD): 11s
- Cable pull Ratio: X-actuation
- Cage (RD): Long
- Max tooth: 42
- Color (RD): Black
- Pulley bearings Material: Steel
- Cage Material (RD): Aluminum
- Weight (g): 256