DESCRIPTION SL-K Light ABS BB386EVO road crankset features hollow carbon fiber arms for amazing stiffness and low weight. The adaptable BB386 EVO 30mm spindle will fit a wide variety of frames with a range of BB standards. The K-Force Light ABS BB386 EVO uses FSA’s Asymmetric Bolt Standard, with four bolts. Choose from 53/39, 52/36, 50/34, or 46/36 gearing options. The unidirectional carbon finish, updated graphics, and concealed chainring bolts make the SL-K crankset look as fast as it is stiff. FEATURES Hollow carbon arms with UD carbon finish Forged AL7050 BB386EVO spindle AL7075 100% CNC chainrings AL7075 Torx T-30 alloy chainring bolts with tabcover Fits Shimano and SRAM 10-11 speed systems