Shimano CS-HG50 Cassette Sprocket 7 Speed 12-28T (black) Front It comes with height of

It comes with height of 18mm

Bell inner tubes are high quality inner tubes constructed with mold-cured rubber for a consistent sidewall to help prevent high pressure blow outs

Steel cogs with lockring

Rolls smoothly without sacrificing traction

Shimano CS-HG50 Cassette Sprocket 7 Speed 12-28T (black) Front It comes with height ofHyperglide sprockets have a computer designed tooth configuration with contoured shift gates, resulting in a crisp smooth shift even under load. Close ratio gearing allows a more efficient use of energy through finer cadence control. Sprockets are cut away to further reduce weight without reducing rigidity. Nickel plated finish offers hard wearing resistance to corrosion. Corrosion resistant steel cassette lockring.