DescriptionThe Eagle AXS rear derailleur is the brain of the entire AXS system. Its shorter cage provides 10mm more ground clearance, improved chain wrap, and a more tucked-in position compared to mechanical Eagle, giving you better protection and superior performance on rough terrain. Designed for fast, consistent shifting with wireless AXS technology. Battery not included. Features Shorter cage with 10mm additional ground clearance Increased chain wrap and a more inboard position than mechanical Eagle Wireless AXS shifting for precise, consistent performance Compatible with existing AXS batteries (sold separately) Robust construction for aggressive trail and enduro riding Specifications Model ID: RD-X0-1E-A1 Speed: 12-speed Maximum Cog: 52T Minimum Cog: 10T RD Capacity: 42T Mount: Standard Chain Compatibility: Eagle Battery: Not included