Shimano DX Cassette Cog
Shimano DX Quality 3/32 cog. So can be used with narrow 3/32 race chains as well as the wider 1/8" single speed chains.
• Can be used on new or old type Shimano DX or DXR hubs, Odyssey Race an some other cassettes.
• 14, 15, 16 or 18T