Shimano Dura-Ace Di2 RD-R9150 Rear Derailleur

The RD-9150 DI2 version offers the digital precision of SHIMANO electronic shifting and synchronized shifting.

• Stable and fast shifting performance even under load
• Shimano synchronized shift
• Shimano shadow RD construction
• Low profile rear derailleur design, less likely to be damaged in crash
• Maintains compact and smooth appearance
• Compatible with up to 30T cogs
• 11-speed
• 197g