SRAM X4 Rear Derailleur - 789 Speed Long Cage Black MFPN=00.6218.015.005 It offers the versatility of

It offers the versatility of the CINCH system for a variety of gearing combinations

Threaded cage assembly and derailleur mount bolt not included - re-use these from Eagle 90 or Eagle 70 derailleur

Color Compass Navy Cuff Height 6 Primary Color Blue Size XL Fabric Technology Wool

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Holds wheelbases up to 47" and tires as large as 3" width

SRAM X4 Rear Derailleur - 789 Speed Long Cage Black MFPN=00.6218.015.005 It offers the versatility ofSRAM X4 Rear Derailleur 789 Speed Long Cage Black. Affordable and reliable derailleur is great for repairs and upgrades. Compatible with 7 8 and 9 speed systems 1: 1 shifter to derailleur actuation ratio for precise light action indexing TECH SPECS Largest Cog 34 Color Black Rear Der Shifter Compatibility SRAM 1: 1 Rear Derailleur Mount Type 10x1 Standard Drivetrain Speeds 7 Drivetrain Speeds 8 Drivetrain Speeds 9 Weight 280 Chain Wrap Capacity