FSA (Full Speed Ahead) Gossamer Pro Modular AGX+ 1x Crankset - 165mm, 11-Speed, 42t, 120mm BCD, 386 EVO Spindle Interface, BlackThe FSA Gossamer Pro Modular AGX+ is a high end crankset for alloy lovers. The cold forged aluminum arms are heavily scalloped for the maximum strength to weight ratio. Thanks to the adaptable BB386 EVO 30mm spindle, this modular system will fit a wide variety of frames with a range of bottom bracket standards. Cold forged alloy crank arms CNC machined alloy 386EVO spindle Chromoly chainring bolts Q Factor 154mm 50mm Chainline High polished anodized