The SRAM XX1 Eagle AXS derailleur carries over many of the features of the mechanical XX1 derailleur, such as the useful Cage Lock and Type 3 Roller Bearing Clutch. Added to this are several all new technologies that help improve performance and durability. Wireless design is incredibly easy to installDerailleur cage is 10mm shorter than regular Eagle derailleurs to improve ground clearanceOverload Clutch helps to protect derailleur from direct strikesType 3 Roller Bearing Clutch provides impeccable chain retentionWater and dust-proof to IP67K to shrug off the elementsControlled by SRAM's new AXS technology, the derailleur offers crisp, instantaneous shifting and a super-clean cable free design, taking mere seconds to install and sync with the AXS controller using the AXS app. Further improving shifting and durability is the Overload Clutch. This works to protect the rear derailleur in case of a direct strike to it from a trail-side obstacle or crash, protecting the derailleur and keep