FSA SL-K Adv. 2x Modular Crankset 48/32T 165mm DM/90BCD 386EVO N11. The FSA SL-K Advanced 2x Modular Crankset combines versatility and performance in a lightweight carbon package. Its modular design allows for multiple chainring configurations making it adaptable to a range of riding styles and conditions. With BB386EVO compatibility and a focus on stiffness and efficiency this crankset is well-suited for road cyclists who want a high-performance customizable drivetrain solution.