SHIMANO CLARIS - Rear Derailleur - Medium Cage - 8-speed With light action and smooth gear transitions, the SHIMANO CLARIS derailleur is compatible with 8-speed road drivetrains. Color: Black Largest Cog: 34 Rear Derailleur Mount Type: 10x1 Standard Chain Wrap Capacity (teeth): 43 Cage Length: Medium Rear Der/Shifter Compatibility: Shimano Road Drivetrain Speeds: 8