SRAM Force D2 1x Crankset Speed: 12 Spindle: 28.99mm BCD: Direct Mount 40 DUB 170mm Black Road DiscA single chainring with a wide range cassette is a wonderfully clean way to tackle so many disciplines. Gravel, TT, tri or crits: just pick the right chainring size and go. Lightweight and strong direct mount chainrings feature X SYNC tooth technology to maximize chain retention, and they bolt to carbon arms with a spectacular but subtle finish. Single ring drivetrain simplifies functionality and reduces weight Direct mount chainrings are lighter and