I have for sale an unused Campagnolo Chorus CSK01-CH0923 UD 9s sprockets 12-23T + Campagnolo Record CN99-RE09 UD C9 Chain. The chain is new and originally packaged by the manufacturer in an unopened plastic bag. The chain was removed from the box for photos. The cassette is unused and has never been mounted to a bicycle. The cassette box shows signs of having been stored for many years.