Campagnolo Super Record X Wireless 13 Speed Gravel Rear Derailleur The Campagnolo Super Record X Wireless 13 Speed Gravel Rear Derailleur delivers fast and quiet shifting across demanding gravel terrain. It features compact construction, advanced electronics and premium materials for reliable performance. The redesigned carbon cage supports cassettes up to 48 teeth and the unit weighs 347 g with the battery installed. Battery life extends to around 750 km with rapid charging through a USB C port. Campagnolo Super Record X Nano Clutch The Nano Clutch maintains consistent chain tension on rough surfaces and steep descents to reduce chain drop and improve stability. The derailleur body sits beneath the sprocket set to improve alignment and shifting accuracy. Two specific pulleys a twelve tooth upper pulley and a sixteen tooth lower pulley guide the chain smoothly for precise movement. Campagnolo Super Record X Extended Cage The extended 92.5 mm carbon cage works with wide range gravel cassettes. The derailleur fits UDH hangers and standard dropouts and connects with the MyCampy app for monitoring and setup. It also works with the Campagnolo single chainring road crankset for broad gearing options on mixed surface or road oriented builds.