The Shimano Claris FC-RS200 Crankset features smooth shifting performance for road drivetrains, and a stylish appearance. FEATURES : Smooth shifting performance under various conditions Uses a square taper bottom bracket 43.5mm chainline / 153.7 Q-factor SPECS : Number of Chainrings: Double Color: Black Crank Length (mm): 170 Pedal Spindle: 9/16" Crank Intended Use: Road Chainline/Hub Compatibility: 130 Hubs Rings: 50/34 Spindle Interface Type: Square Taper JIS Drivetrain Speeds: 8 Chainring BCD: 110 BB Included: No