FSA (Full Speed Ahead) SL-K Modular Crankset - 175mm, 11-Speed, 46/30t, Direct Mount, 90 BCD, 386 EVO Spindle Interface, BlackSL K modular BB386EVO is the latest FSA crankset for gravel, adventure or road use. Thanks to the adaptable BB386 EVO 30mm spindle, this modular system will fit a wide variety of frames with a range of BB standards. Hollow carbon fiber arms with UD finish Forged AL7050 BB386EVO spindle Direct mount outer chainring and 90 bcd inner chainrings Chromoly chainring bolts Fits Shimano and SRAM 10 11 speed systems Product Specifics Drivetrain Speeds: 11