[bob]

I just picked up a used set of wheels built with CK SS hubs. There is no rear cog. Can I only use CK cogs or are there others that would work such as Surly?

 

[Drevil]

I just picked up a used set of wheels built with CK SS hubs. There is no rear cog. Can I only use CK cogs or are there others that would work such as Surly?

Surly, Boone, and CK will minimize damage to your freehub due to their wide base.

 

[Nater]

Endless too...

the Endless Bikes Kig Ass cogs are wide base too.