Automatic Impact Recovery: this returns the derailleur instantly to its original position after an impact.
Wide link structure and skid plate: the wide links provide added strength and the skid plate helps protect the derailleurs' internals if the bike is dropped.
Shadow ES technology: the lower-profile, wedge-shaped design increases ground clearance and frontal area. The derailleur also features a chain-stabilising clutch to reduce bounce and chain slap.
Protected battery housing: keeps the battery tucked away and out of harm, while providing easy access for charging.