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SRAM Apex Eagle Rear Derailleur - 12-Speed Long Cage 52t Max Black D1. The SRAM Apex Eagle rear derailleur quietly and quickly shifts across their 12-speed Eagle cassettes while 1x-specific chain retention technology keeps the chain where it needs to be. It’s the best of SRAMs road and mountain bike innovations in one package.Compatible with 50t and 52t Eagle cassettes
Works with SRAM 12-speed mechanical Apex and Eagle shifters
For use with Eagle 12-Speed chain
Roller Bearing Clutch controls chain tension for consistent shifting
X-HORIZON straight parallelogram design limits all movement to the horizontal axis which makes ghost shifting impossible while also reducing shift force
Cage Lock technology makes for fast wheel changes or chain installation
- TECH SPECS
| Cage Length | Long |
| Chain Wrap Capacity (teeth) | 42 |
| Color | Black |
| Drivetrain Speeds | 12 |
| Largest Cog | 52 |
| Rear Der/Shifter Compatibility | SRAM X-Actuation |
| Rear Derailleur Mount Type | 10x1 Standard |