Cheap Source for Track Cogs? Getting Rid of an Old Cog?
 

I'm trying to round up some BB lockrings and rear cogs for the wheels I am converting for fixed riding. Is there anyplace that I can buy rear cogs for relatively cheap? I don't want to have to shell out $25-30 for a cog going on a budget locktite fixie.

If anyone has cogs that they outgrew or just don't need anymore, please drop me a line.

I'll take just about any size, but I am looking for larger cogs (18t+). Thanks!

sometimes you can find them on old excercise bikes! they are super low-grade but often free.