Campagnolo Record Crankset – 170mm – 12-Speed – 53/39t FC19-RE12093. The Record 2×12-Speed crankset shares the same dimensions of previous cranks, within a new design. Unidirectional carbon fiber construction guarantees continuity of the entire groupset, and features the Ultra-Torque system with steel 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. 112/146 Asymmetric BCD, Ultra-Torque Spindle Interface, Carbon. Unidirectional carbon fiber crank arms, steel axle and aluminum chainrings. Eight fixing screws for increased stiffness. Superficial treatment of the chainrings for a longer lifespan. Unchanged Q Factor (145.5mm). Bike / Ebike Cranks / Pedals / Hubs. 135/142 Road Disc Hubs > 415 Mm Chainstay. For MORE GREAT DEALS on powersports parts and accessories! Your friends at MOTOMENTUM appreciate your Business!