Campagnolo Super Record 12-Speed Rear Derailleur

Campagnolo Super Record 12-Speed Rear Derailleur. The Campagnolo Super Record 12-Speed Rear Derailleur is made from premium materials and has been updated to provide the very best in shifting performance. Built from technopolymer and reinforced with carbon fiber, this derailleur uses new pulley wheels that improve shifting and a larger 12 tooth design that improves chain efficiency. Additionally, it uses…