Sora FD-R3000 Front Derailleurs Features-Long-arm front derailleur for reduced shifting effort-Aluminum body with painted finish-Chrome plated steel cage Item Specifications-Front Derailleur Clamp:28.6 (1-1/8")-Front Derailleur Clamp:31.8 (1-1/4")-Front Derailleur Clamp:34.9 (1-3/8")-Front Derailleur Cable Pull:Bottom Pull-Derailleur Capacity:16-Front Derailleur Style:Traditional-Max Ring:52-Double or Triple:Double-Drivetrain Speeds:9-Front Der/Shifter Compatibility: Road