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For auction are a pair of 10 tooth derailleur pulleys.  The pulleys fit vintage Campagnolo Nuovo Record and Campagnolo Super Record rear derailleurs.  They are a direct replacement for the originals.  These are NOT manufactured by Campagnolo and are NOT NOS.  These pulleys are brand new and designed as a replacement.  In performance they are better than the originals, the tooth profile is improved and the plastic will not crack like the originals did.  If you are replacing your pulleys and ride the bike, you will notice better and quicker shifting, and these are the pulleys are for you.  If you are building or restoring an museum piece which must be accurate in every detail, these ARE NOT the pulleys you want.