ZEUS 2000/Criterium 13t DUPLEX threaded cog NOS! BB20D 035 - 8/6/20 RK02

ZEUS 2000 / Criterium 13t duplex threaded freewheel cog NOS! This cog will thread onto 1st GEN. ZEUS 1st position threaded receiver cogs. This cog will be the earlier version with the smooth chrome finish, when threading onto a receiver cog it will be tight, this is probably due the the earlier chroming process.