Campagnolo is all about drivetrain evolution and their Chorus Ultra-Torque Crankset proves it. The design's stiffness allows the multi-directional carbon crankarms to be incredibly thin and light. It sports a unique, integrated spindle that joins the crankset together via a toothed Hirth joint in the center. The compact Chorus chainrings allow for easy pedaling over undulating terrain and sport special pins as well as plating for quiet shifts and long life. Plus, bottom-bracket bearings are included and fit into outboard cups (sold separately).