Campagnolo Record 13x Wireless Rear Derailleur The Record 13x Wireless Rear Derailleur redefines the standards of road shifting by delivering a level of precision, speed, and silence that is truly unprecedented. Built with a compact architecture that sits tucked neatly beneath the cassette, this derailleur improves aerodynamics while ensuring perfect alignment between the pulleys and gear ratios. The result is a drivetrain that remains exceptionally quiet and reliable, even when navigating rough terrain or shifting under significant power, providing the rider with total confidence in every gear transition. Technological sophistication is at the core of this component, featuring a fully revised path that allows for faster shifting than previous 12-speed generations. The derailleur utilizes two 14-tooth pulleys with differentiated profiles to guide the chain with surgical accuracy across a wide range of cassettes, accommodating up to a 36-tooth large sprocket. For added peace of mind, the integrated Unlock System allows for manual positioning in the rare event of a malfunction, with the ability to re-engage the system directly from the shift lever while you continue your ride. Power management is equally impressive, with a removable battery that offers up to 750km of range and reaches a full charge in just 60 minutes via a magnetic quick-snap USB-C system. This wireless ecosystem is fully customisable through the MyCampy app, allowing you to monitor battery status and tailor the shifting controls to your specific riding style. Constructed from premium carbon and aluminium components and weighing only 297g, the Record 13x derailleur is a high-performance masterpiece that brings flagship Super Record technology to a broader range of elite cyclists.