SRAM Force Crankset - 172.5mm, 2x 12-Speed, 46/33t, Direct Mount, DUB Spindle Interface, Iridescent Gray, D2The SRAM Force carbon 2x crankset is the very center of the X Range gearing philosophy. With tight 13 tooth gaps between chainrings paired to wide range cassettes, riders get more range while shifting less frequently and staying in the big ring longer. Previously only available on RED, SRAM's integrated chainrings are light, stiff, and incredibly durable. The black finish mated to dazzling glossy carbon arms will elevate any bike. X Range gearing