Lighter, faster and more capable than ever, the Force AXS rear derailleur does it all in style. Covering cassette ranges from 10-28T up to 10-36T, this wireless wonder has a new, lighter cage and a larger pulley wheel to increase drivetrain efficiency. One derailleur ready for 2x or 1x, the steepest climbs and descents, all while shedding 12g from previous generation Force. FEATURES: AXS enabled for easy setup, personalization, and reliability Compatible with both 2x and 1x drivetrains Compatible with cassettes from 10-28T to 10-36T Larger X-SYNC pulleys for increased efficiency Chain management technology keeps the drivetrain quiet and secure SPECS: Speed (RD): 12 Max tooth: 36 Color (RD): Unicorn Black w/Laser Foil Pulley bearings material: Steel Cage material (RD): Carbon Drivetrain Configuration: 2x Communication Protocol: AXS Shift Technology: Wireless Chain Technology: Road Flattop D1, Road Flattop E1