* Large chainring combinations for those who prefer big gears* Includes required two-position RED eTap AXS front derailleur* AXS enabled for easy monitoring and firmware upgrades* Power readings are accurate within +/-1.5% and arenÛªt affected by climate conditions during a ride* Power balance measures left and right legs separately* 8-bolt direct mount compatibility only to new RED and Force eTap AXS cranks.