Surly Cassette Cog 3/32" for Freewheel Hubs

The Surly Cassette cog is designed to fit on standard Shimano compatible freehub bodies and offers a simple way to convert your bike into a singlespeed. The high quality cog is CNC machined and heat treated for extra toughness and long durability. With tall tooth profile and 4,35mm cog base width. You can even stack a few of them up to built your individual cassette. Compatible with 3/32" 6- to 9-speed chains. Recommended is the use with 8- or 9-speed chains. Note: The cassette cog is designed for the use with the Surly Singlespeed spacer Kit, which is not included in delivery.