Shimano Dura-Ace Di2 RD-R9150 Rear Derailleur (Black) (11 Speed) (Short Cage) (SS) (Electronic)

The new Dura Ace 9150 Di2 Electronic Groupset is yet another bold leap forward in top level bike racing technology. Time tested by pro riders and engineers, Shimano has added another layer on top of the highest level of components available today. If you haven't experienced Di2 for yourself, we can assure you that once you ride it, you will never go back. The RD-9150 adds Shadow + Technology from Shimano's top end MTB derailleurs to elevate performance to yet another level.

Features:

• LOW PROFILE REAR DERAILLEUR DESIGN   
• SHIMANO SHADOW RD 
• RACE ENDURANCE FOR LESS DAMAGE IN CRUSH   
• MAINTAINS COMPACT AND SMOOTH APPEARANCE

Specifications:
Series: DURA-ACE
Maximum Sprocket: 30T
Minimum Sprocket: 11T
Maximum Front Difference: 16T
Total Capacity: 33T
Average Weight: 204g