Shimano CS-HG31 8-Speed Cassette Sprocket AO Brand We built it to withstand

We built it to withstand changeable weather with our trusted waterproof and windproof yet breathable HELLY TECH® construction

our refined AirSpeed® suspension keeps you cool with maximum airflow between you and your pack

-Lifecycles: Hundreds of cycles

Internal hydration sleeve with hose port in backpanel

Close-fitting neck baffle design

Shimano CS-HG31 8-Speed Cassette Sprocket AO Brand We built it to withstandSHIMANO CLARIS 8 Speed HYPERGLIDE Road Cassette Sprocket Offered in a wide range of road gearing, the HG50 8 cassette is perfect for 8 speed road drivetrains. FEATURES Multi surface ridable gear ratio Current gear combinations: 11 28T, 11 30T, 11 32T, 12 25T, 13 26T New gear combination: 11 34T PRODUCT SPECIFICATIONS MODEL NO CS HG50 8 SERIES CLARIS R2000 Series Combination 11 13 15 17 19 21 24 28T (bf) 11 13 15 17 20 23 26 30T (an) 11 13 15 18 21 24