Experience the benefits of the Shimano SLX Cassette Cog 11f. 11-40T! This cassette cog is part of the SLX group and offers a Hyperglide tooth profile. With 11 speeds you can shift between 11-13-15-17-19-21-24-27-31-35-40 teeth. The cog is compatible with Linkglide and 11-speed HG chains and weighs 450g.