Original OXO cassette sprocket cogs. Each cogs are designed to work together with your rear derailleur and chains, resulting in good and smooth shifting. Make sure to choose the right cog for your particular sprocket (each type has different heights). Designed to fit and work with OXO SK-Series cassette sprockets.
Available Cogs
9-Speed: 11T, 12T, 13T
10-Speed: 11T, 12T, 13T
11-Speed: 11T, 12T, 13T
12-Speed: 11T, 12T, 13T