Demolition Medial 2.0 BMX Cranksets are constructed of 4130 CroMoly with arms that undergo a patented ThermoTriton heattreated process. Tubular CroMoly RHDLHD arms, 19mm 48spline spindle Smooth outer plate to protect rider's ankles from damage Arms, spindle and bolts included no bottom bracket use 19mm Item Specifications Color Flat Black Pedal Spindle 916 Arm Length 165mm Crankset Style 3Piece BB Style Not
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