SRAM S100 Courier PS Crankset BB Shell Width: Power Spline, Chain Compatibility: Shim/SRAM 10,9-Speed, Chainring BCD: 130 millimeter, Chainrings: 48T Crank Color: Blast Black, Crank/FD Type: Single Ring, Crankarm Length: 170 millimeter, Crankarm Length: 170 millimeter Crankset BCD: 130 millimeter, Crnk Clr: Black, Crnk Clr: blast black, Interface: PS, Length: 170 millimeter, Pedal Spindle: 9/16-Inch Rings: 48, Speed: 1x, Spin: Not Applicable, Spindle Interface Type: TruVativ Power Spline, Spindle Length: 113,118 millimeter