REAR DERAILLEUR RD-R9150 DURA-ACE DI2 11 SPEED SS
- Di2 E-Tube Electronic Shifting
- Ergonomic shifting operation without stress
- Shimano Di2 synchronized shift
- Cassette Spacing: Shimano/SRAM 11
- Low profile rear derailleur design
- Shimano Shadow Rear Derailleur: Keeps derailleur tucked away
- Race endurance for less damage in crash
- Maintains compact and smooth appearance
- Maximum Sprocket : 30T
- Minimum Sprocket : 11T
- Maximum Front Difference : 16T
- Total Capacity : 35T
- Weight: 204g.

