Power your dream bike with Campagnolo's unsurpassed Record crankset. They sport an integrated axle design which is unique in the industry with two axle halves joined together via a toothed Hirth joint in the center. Bottom-bracket bearings are included and fit into outboard cups (sold separately). The resulting boost in stiffness allows the carbon crankarms to be thinner and lighter than ever before. Plus, the Record compact chainrings allow easier pedaling over undulating terrain and sport special plating for fast, silent shifts and long life.