R10 front derailleurs work with 10-speed Shimano-compatible road shifters. Designed to work with a variety of chainring combinations, these workhorse components will get you rolling again.Features-Cold-forged aluminum body-Chainstay angle: 61-66-Chain line: 43.5mm-Includes adapter for 28.6 and 31.8mm seat tubesItem Specifications-Drivetrain Speeds:10-Double or Triple:Double-Derailleur Capacity:16-Front Der/Shifter Compatibility:Shimano Road-Front Derailleur Cable Pull:Bottom Pull-Front Derailleur Clamp:28.6 (1-1/8"),31.8 (1-1/4"),34.9 (1-3/8")-Front Derailleur Style:Traditional-Max Ring (teeth):56