The Campagnolo Eleven Cassette is the perfect replacement cassette for all your Campagnolo needs. It works great with Super Record, it works great with Record, Chorus, Potenza, and Centaur. First, a word on spacing. All Campagnolo cassettes have the same eleven-speed spacing, which meshes perfectly with all Campagnolo eleven-speed shifting, which is pretty much identical to eleven-speed spacing across the industry. The cog cuts, shapes, ramps, etc. on this cassette are similar to what you’ll find across the Campagnolo cassette range. The other difference that is essential to know is that the splines on the inside of the cogs match the splines of Campagnolo and Campagnolo-compatible cassette bodies only, specifically those cassette bodies for 9/10/11-speed rear wheels. These cassette bodies are standard on Campagnolo wheels, and are an option for many after-market wheels. The 11-29 weighs 291, including the lock ring, which is included with the cassette. The tallest three cogs are riveted to a carrier to both save weight and protect the cassette body. The remaining eight cogs are loose and slide onto the cassette body along with the included spacers. The Campagnolo 11 Cassette is the perfect replacement cassette for all your Campagnolo-equipped bikes.