Seido Lyer Crankset Spindle: 30mm 30mm 175mm Black Road Disc SetA robust and versatile aluminium crankset with a 30mm spindle Fits frames with up to 86. 5mm wide BB shells Self extracting crank arm bolt on the drive side paired with 3 bolt direct mount interface for fat chainring swaps Adjustable preload collar helps to keep the correct bearing preload and avoid premature wear TECH SPECS Primary Color Black Drivetrain Spacing Road Disc Crank Spindle Diameter 30mm Crankset Material Aluminum Pedals Thread 9 16