This vintage 1973 Campagnolo Nuovo Record rear derailleur is a great addition to any road or racing bike. It is made of aluminum and alloy materials with a silver color finish. The short cage length derailleur is compatible with Campy brand and Paramount model bikes and has a bolt-on mounting type. It has five speeds and weighs 197g. This listing is for the rear derailleur only and is the perfect part to replace an old or broken one. It only has a few small scratches, no cracks, and is fully functional. It is a genuine Campagnolo product made in Italy and is in nice overall condition. Whether you are a collector or just looking for a reliable rear derailleur, this Campagnolo Nuovo Record is a great choice.