The Campagnolo Ekar Rear Derailleur is the first of its kind to take on the challenge of 13-speed gravel shifting. It comes with a lightweight carbon build that features a reinforced polyamide and has an alloy body to provide the kind of durability needed in off-road riding. Stainless steel bolts are featured to maintain cable tension through aggressive riding. It utilizes Campys special parallelogram movement to ensure smooth and accurate shifting across a 13 cog cassette. It even features a clutch-lock system to make wheel removal a breeze. The Campagnolo Ekar Rear Derailleur is an advanced piece to a futuristic groupset.