Shimano Sora R3000 Rear Derailleurs FEATURES: Compatible with Shimano 9-Speed STI levers Fluoric coated link bushings Aluminum bracket body Painted finish Stainless steel B-axle SPECS: Largest Cog: 32 Rear Derailleur Mount Type: 10x1 Standard Chain Wrap Capacity (teeth): 37 Cage Length: Short Rear Der/Shifter Compatibility: Shimano Road Drivetrain Speeds: 9 Maximum Sprocket: 32T Minimum Sprocket: 11T Maximum Front Difference: 16T Total Capacity: 37T Model Number: RD-R3000-SS Series: SORA