The Dura-Ace 7900 rear derailleur is a stable and precise derailleur with an innovative design. Nothing out performs a Dura Ace Derailleur. Key Features
- Precise aluminum machining and light weight carbon fiber construction.
- Carbon pulley plate
- Speeds: 10
- Wide gear-ratio compatible with 28t cassettes
- Enhanced pulling cable method for added stability
- Wide link design for added stability, precise shifting and durability
- Weight: 116 grams