We originated the 1x drivetrain,  & the SRAM Force 1 crankset evolves the innovation. It's lighter,  stronger & simpler—non-aero chainrings can now be installed with a single tool. For cross,  TT,  tri & crits,  this is the king of 1x. 
 Features: Single-ring drivetrain simplifies functionality & reduces weight 48t variant has direct mount aero chainrings for better aerodynamics Non-aero chainrings can be installed with a single tool,  making gearing changes a breeze SRAM X-SYNC™ wide-tooth,  narrow-tooth chainring technology provides maximum chain control DUB™ bottom bracket adds durability & simplicity Can be upgraded to a power meter