Super Nice Second Generation Campagnolo Record 8/9 Speed Index Rear Derailleur The classic quintessential all alloy rear derailleur.  The rear derailleur that set the standard professional performance and durability.  Classically styled in good condition with signs of use. There are 2 versions of the Campagnolo 9 speed index system. This derailleur is compatible with the Camapagnolo 8 speed index system and the first generation Campagnolo 9 speed index systems only.