sram quarq powermeterkit force axs 46 33t direct mountAXS enabled for easy monitoring and firmware upgrades Single ring drivetrain simplifies functionality Fully integrated power meter into a direct mount aero chainring Power readings are accurate within + 1. 5% and aren't affected by climate conditions during a ride Power balance measures left and right legs separately SRAM X SYNC wide tooth, narrow tooth chainring technology provides maximum chain control Laser etched chainring finish is more durable 8