FORCE AXS XPLR derailleurThe ultimate in both Gravel and glamour, the XPLR rear derailleur shines in all circumstances. With its specially designed and dedicated 1x system for 10-44 or 10-36 cassettes, the drivetrain is streamlined and works perfectly on pavement as well as on narrow trails. With proven eTap wireless shifting logic, AXS connectivity, and sophisticated chain management, this derailleur does exactly what you want it to do when you want it to.TECHNOLOGYAXS, eTap, Orbit, X-SYNC, X-RangeFEATURESChain management technology Orbit guarantees safe and silent operation of the transmissioneTap shift logic for intuitive shifting AXS connectivity for easy setup, customization and reliability 1x system for use with 10-44D XPLR or 10-36D cassettes Large rollers X-SYNC for durability and efficiency