Shimano alivio hg300 9 speed cassetteaffordable 9 speed hyperglide cassette sprocket hyperglide sprockets guide the chain quickly and directly to the next sprocket without override features chain compatibility super narrow hg for 9 speed gearings 11 32t11 12 14 16 18 21 24 28 32 gearing 11 34t11 13 15 17 20 23 26 30 34 gearings 12 36t12 14 16 18 21 24 28 32 36 weight 323g 11 34ta 2 year warranty is offered with all shimano products from chain reaction cycles 3 years on dura ac