The 9100 DURA-ACE rear derailleur blends an aerodynamic SHADOW design with increased range options in a lightweight, attractive mechanism aimed at demanding road cyclists. The RD-9150 DI2 version offers the digital precision of SHIMANO’s electronic shifting and synchronized shifting.

Features

• Ergonomic, effortless shifting operation
• SHIMANO synchronized shifting
• Low-profile rear derailleur design
• SHIMANO SHADOW RD
• Strength. racing for less damage in case of crushing
• Maintains a compact and smooth appearance