Strong, sleek and innovative, the new Dura-Ace 7900 rear derailleur features Carbon Composite upgrades and is compatible with wide gear ratios.
Carbon pully plate - Saves weight.
Wide gear ratio - Compatable with a 28 tooth cassette / compact chainset without changing the rear derailleur (Total capacity 33 teeth).
Enhanced pulling cable - Wider gear range.
Wide link design - More stability and more precise shifting.
Compatible with double chainring chainsets.
Weight : 164g.
Cage Length : Short
Speed : 10