Sram XX1 Eagle AXS AFT Upgrade Kit The Sram XX1 Eagle AXS AFT Upgrade Kit revolutionizes cycling with cutting-edge electronic shifting technology, offering precise and fast shifting. XX1 Eagle AXS rear derailleur: Cage material: Carbon Sheaves: Steel Maximum number of teeth: 52 XX1 Eagle AXS Shifter: Function: Actuation on the rear derailleur Orientation: Right Press: Double Lever adjustment: No Multiposition: Yes Battery: CR2032 Battery: Charging time: 60 min Compatibility: eTap and AXS Network Weight: 24g