Campagnolo Chorus 9-Speed Rear Derailleur: RD-09CH - Vintage 1990's (Low Miles + Road Rash)
This is one of the first 9s Chorus rear derailleurs, from 1997.
This one has quite few miles ridden, but at first glance looks a bit rough due to road rash on the lower edge and a touch on the faceplate. Aside from these spots, it is excellent or better. Springs/pivots are very smooth and free of play, jockey wheels feel great with almost no visible wear.
- From the 9 speed group