Forged hollow aluminum crank arms maximize stiffness while minimizing weight. Light weight hard anodized alloy chainrings and alloy chainring bolts.
Features Campagnolo X.P.S.S. (eXtreme Performance Shifting System) featuring geometrically optimized chainring teeth. Optimized when mated to a full Campagnolo drivetrain
Double standardized bolt circle diameter allows for use of standard, mid-compact and compact chainrings
Ultra-Torque axles couple together in the middle of the BB shell via a Hirth Joint that self centers the crank. This results in a very light weight and stiff system that transfers power to the pedals without power loss
Ultra-Torque system have both drive and non-drive side bearings pre-installed