SRAM X3 Rear Derailleur - 789 Speed Long Cage Black

Affordable and reliable derailleur is great for repairs and upgrades. Features-Will work with 7, 8 or 9 speed cassettes, depending on the shifter used-1:1 shifter-to-derailleur actuation ratio for precise light-action indexing Item Specifications-Color:Black-Weight:272-Largest Cog:34-Chain Wrap Capacity:45-Cage Length:Long-Drivetrain Speeds:7-Drivetrain Speeds:8-Drivetrain Speeds:9-Rear Der/Shifter Compatibility:SRAM 1:1-Rear Derailleur Mount Type:10x1 Standard

Will work with 7, 8 or 9 speed cassettes, depending on the shifter used 1:1 shifter-to-derailleur actuation ratio for precise light-action indexing