SL-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 and SRAM 10-11 speed systems. Item Specifications: Pedal Spindle, 9/16", BB Included, No, Chainring BCD, 90,Direct Mount FSA, Color, Black, Defined Color, Black, Crank Intended Use, Gravel,Road, Number of Chainrings, Double, Crank Length (mm), 175mm, Rings, 46/30, Drivetrain Speeds, 11, Spindle Interface Type, 386 EVO, Weight, 670, Chainline/Hub Compatibility, 135/142 Road Disc Hubs > 415 mm Chainstay,130.