Sram: Fast, precise rear shifting is now more attainable than ever. Whether you ride 2x or 1x, tarmac or gravel, the SRAM Force eTap AXS rear derailleur is up for the task. It features Orbit damper technology for quiet, secure chain management over rough roads and capitalizes on larger X-SYNC pulleys for improved durability and efficiency.FEATURESOrbit™ chain management technology keeps the drivetrain quiet and secureCompatible with both 1x and 2x drivetrainsSRAM AXS™ enabled, allowing easy personalization36t-max derailleur is compatible with 10-36 and 10-33 cassettes33t-max derailleur is compatible with 10-26, 10-28, and 10-33 cassettesLarger X-SYNC™ pulleys for increased durability and efficiencyCompatible with existing eTap® batteries SPECIFICATIONSSpeed (RD): 12sCable pull ratio: n/aCage (RD): MediumMax tooth: 36Color (RD): GreyPulley bearings material: SteelCage material (RD): Aluminum