Shimano Altus CS-HG31 8 Speed Cassette Sprocket 11-30T BlackShimano Altus CS-HG31 8 Speed Cassette Sprocket has a special design that insures fast and powerful shifting. The 8 speed sprocket offers a wider range of gear choices and a lower bottom end. It has hyper glide cogs for easy shifting and is compatible with all Sram/Shimano slide on cassettes. Available in gear range 11-30T,11-32T and 11-34T.689228675568
