The versatile FD-TY600/TY601/TY606 series of top-swing front derailleurs shift with a smooth, light action and fits many bike styles. For 66-69° chainstay angles. 47.5/50 mm chainline. Compatible with 6/7/8-speed. Dual SIS technology delivers reliable shifting performance. Versatile performance and wide compatibility with a single specification that covers a wide range of usage. 34.9mm and 31.9mm (with adapter) dual-pull/multi-clamp band. Item Specifications: Double or Triple: Triple, Drivetrain Speeds: 6, Drivetrain Speeds: 7, Drivetrain Speeds: 8, Crank-FD Type: Mountain Triple, Derailleur Capacity: 18, Front Derailleur Clamp: 31.8 (1-1/4"), Front Derailleur Clamp: 34.9 (1-3/8"), Front Derailleur Cable Pull: Dual, Front Der/Shifter Compatibility: Mountain, Max Ring (teeth): 42, Front Derailleur Style: Topswing,