hope 11 speed cassette for 1 x 11 drivetrains machined from two individual solid billets the larger sprockets are machined from aluminium and the seven smaller sprockets are machined from steel 11 speed spacing with 10 40 10 44 and 10 48 teeth available with a maximum ratio change of 20 percent the cassette on a hope specific free hub body that fits pro 4 and pro 2 evo hubs available in 10 40 10 44 and 10 48 tooth