Shimano Dura-Ace Rear Derailleur

* Programmed automatic motion.
* CFRP pulley plate.
* Saver (fuse) function.
Inner structure is protected from strong impact.
* Wide Link design to reduce shifting deflection.
Increases rigidity, precise shifting over an extended time period.
* Max rear sprocket: 28T.
* Max front difference: 16T.
* Total capacity: 33T.
* Weight: 217g.