Eighth Inch EIGHTHINCH CNC Track Fixie Fixed Gear COG 1/8" 17T 17 Tooth;

Eighth-Inch brand Track CogExceptional quality- CNC Steel with ED treatment17 tooth cog1/8 widthCNC Steel- not cheap stamped steelThese cogs dont strip like a lot of the others you see on ebay Check our other listings for more sizes ED (electric dip) treatment is a very expensive process which colors steel to produce? a mirror like finish