FSA K-Force 2x Crankset 52/36T 172.5mm 110BCD 386EVO N11. The FSA K-Force 2x Crankset is a high-performance road component designed for serious cyclists who demand stiffness low weight and efficient power transfer. Constructed with carbon fiber arms and precision-machined chainrings it delivers smooth shifting and consistent performance under load. This crankset is ideal for competitive road riders and endurance athletes seeking a lightweight and responsive drivetrain upgrade.