Shimano sora hg400 9 speed road cassetterejuvenate your nine speed mtb set up with the shimano cs hg400 alivio 9 speed cassette with gear ratios to suit all wheel sizes and contoured shift gates for responsive and smooth shifting this is an ideal all round mtb cassette designed for use with super narrow 9 speed hg chains the alivio 9 speed cassette has a nickel plated finish for longevity and resistance to wear featureshyperglide sprockets have a computer designed tooth configuration with co