SRAM XX1 Eagle Rear Derailleur - 12-Speed Long Cage 52t Max Lunar. Occupying its rightful place at the top of the Eagle ecosystem the XX1 Eagle rear derailleur gives no-compromise racers and dream-bike builders a true top-tier option. The crisp precise XX1 shifting feel athletes rely on features an updated cage geometry for improved chain management.
Type 3 clutch is smoother and more durable
14T lower pulley
Includes a chain gap tool that makes it easy to set up the correct chain length
| Rear Derailleur Mount Type | 10x1 Standard |
| Rear Der/Shifter Compatibility | SRAM X-Actuation |
| Cage Length | Long |
| Drivetrain Speeds | 12 |
| Color | Lunar |
| Chain Wrap Capacity (teeth) | 42 |
| Largest Cog | 52 |
