The XPLR AXS rear derailleur is the epitome of grit and glamour and performs in all conditions. Designed for use specifically with a 1x drivetrain and to be used with a 10-44T or 10-36T cassette, this set up simplifies a drivetrain that can be used on or off road and is equally adept at both. The wireless AXS connectivity and highly advanced chain retention and management means this derailleur performs at all times no matter what.eTap shift logic for intuitive shiftingAXS enabled for easy wireless setup, monitoring, personalization, and reliability1x specific for use with 10-44T XPLR and 10-36T cassettesSRAM AXS enabled, allowing easy personalizationOrbit chain management keeps the drivetrain quiet and secureLarge X-SYNC pulleys for increased durability and efficiencyPLEASE NOTE: Battery not included