You really only need one gear.
Go ahead and use the Surly Single-Speed Kit to
convert your freehub cassette body into a one-gear hurt-machine. Remove
your old cassette, slide on spacers, cog and lockring and your whip is
now a single speed.
- Shimano Freehub body compatible
- Anodized aluminum spacers come in different widths
- Large stainless steel lockring
- Kit does not include cog