Lighter, faster and more capable than ever, the Force AXS 12-Speed 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.AXS enabled for easy setup, personalization, and reliabilityCompatible with both 2x and 1x drivetrainsCompatible with cassettes from 10-28t to 10-36tLarger X-SYNC pulleys for increased efficiencyChain management technology keeps the drivetrain quiet.and secureCompatible with existing AXS batteries (Sold separately)Item SpecificationsCage LengthMediumChain Wrap Capacity (teeth)42ColorBlackDrivetrain Speeds12Largest Cog36Rear Der/Shifter CompatibilitySRAM eTap AXSRear Derailleur Mount Type10x1 StandardWeight284 SRAM Force eTAP AXS Rear Derailleur E1 Rear Derailleur UPC: 710845916793