Splitting crank arms from chainrings might seem like Campagnolo complicating the ordering process, but it actually solves a real problem for riders building or upgrading bikes. The Super Record 13 Crank Arm Set ships as arms only, which means you select your chainring combination separately based on the terrain you ride rather than accepting a pre-packaged pairing that might not match your needs. If your frame arrives with a 52/36 and you need a 50/34 for the mountains, or you want to run different ratios for training versus racing, this modular approach lets you swap rings without replacing the entire crankset. The arms stay the same while the gearing adapts to the situation.

Campagnolo builds these arms from unidirectional carbon fiber with visible weave that signals their construction method at a glance. The exposed carbon aesthetic has defined Super Record for years, and the 13-speed generation continues that tradition while refining the layup for stiffness where it matters. Carbon handles the loads that cranksets endure differently than aluminum, distributing stress across the fiber matrix rather than concentrating it at fatigue points. The result is arms that maintain their structural integrity through thousands of hours of pedaling forces, from seated climbing efforts to standing sprints.

Power transfer happens through Campagnolo's Ultra-Torque system, which permanently bonds each crank arm to half of the bottom bracket axle. The titanium semi-axles mate in the center of the bottom bracket shell, joining with a single bolt that draws the two halves together. This design eliminates the interface between arm and axle that can introduce flex in traditional cranksets, creating a direct connection from pedal thread to chainring spider. The titanium construction shaves weight compared to steel while maintaining the rigidity that high-wattage efforts demand.... Read More