The SRAM Force AXS rear derailleur features a single cage length that works with any cassette size from 10-28T to 10-36T, in 1x or 2x configurations. Shifts are fast and precise, and the Orbit fluid damper keeps the chain in control, whether the obstacle you're hitting is a pothole or a root. Wireless and proven eTap shift logic, AXS connectivity and advanced chain management mean this derailleur does exactly what you want when you need it.