The Super Record 2x12-Speed crankset has been made lighter on the inside, thanks to the design of Campagnolo Hollow Technology. Unidirectional carbon fiber construction guarantees continuity of the entire groupset, and features the Ultra-Torque system with titanium spindle to ensure perfect transmission of power. The innovative design of the outer chainring ensures faster, quieter shifts thanks to the contoured pin, and the symmetrical design of the inner chainring teeth provide improved stability with chain crossovers. Features: Unidirectional carbon fiber crank arms, titanium axle and aluminum chainrings Includes Ceramic Cult bearings Compatible with Ultra-Torque bottom brackets, sold separately Eight fixing screws for increased stiffness Superficial treatment of the chainrings for a longer lifespan Unchanged Q Factor (145.5mm) Specs: Pedal Spindle9/16" BB IncludedNo ColorCarbon Defined ColorBlack Crank Intended UseRoad Rings50/34 Drivetrain Speeds12 Spindle Interface TypeCampagnolo Ultra-Torque