The Shimano Claris R2000 series is designed at a price point for new riders. Not race oriented, but designed for easy rides around town with the durability to handle a long tour. The Claris R2000 has a sporty design but its function promises the opportunity of comfortable and casual riding. FEATURES : 8-Speed rear derailleur Medium cage length SPECS : 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