SunRace CSRS1 10 Speed CassetteThis top-quality cassette delivers fast and smooth shifting all over the mountain. Whether you're shredding the trails or carving around the off-road hills, its steel spider delivers a solid and tough performance. No matter how aggressive the ride is, this model weighs in at only 322g, so you won't have any excess weighing holding you back.Features: Steel Spider 10 speed Suitable for MTB use 322g (approx)Buy SunRace Components from Chain Reaction Cycles, the World's Largest Online Bike Store.