Rear Derailleur Shimano Dura-Ace RD-R9250 Di2 12-speed
Shimano Dura-Ace Di2 12-speed rear derailleur delivering ultra-fast, race-winning electronic shifting for elite road performance.
Overview
Rear Derailleur Shimano Dura-Ace RD-R9250 Di2 12-speed
The Shimano DURA-ACE RD-R9250 Di2 delivers the fastest shifting ever in Shimano’s history, combined with the widest DURA-ACE gear range to date. This 12-speed electronic rear derailleur is built for elite road racing, capable of winning races and setting personal bests.
A single cage length design compatible with 28–34T cassettes brings new versatility to the world’s finest road components. Compared to the RD-R9150, shifting is up to 58% faster, providing instant and precise response in every situation.
An integrated LED status indicator displays battery level, pairing status and adjustment mode information. The CFRP (carbon fiber reinforced polymer) derailleur plate reduces weight while increasing stiffness. A built-in wireless Di2 chip and EW-SD300 connectivity enable seamless system integration and firmware updates via E-TUBE PROJECT.
- Use: Road
- Group: Dura-Ace Di2 R9250
- Model: RD-R9250
- Speeds: 12
- Compatible cassette: 28–34T
- Compatible chain: CN-M9100 HG 12-speed
- Max sprocket: 34T
- Min sprocket: 28T
- Small sprocket: 11T
- E-TUBE port: 1 (EW-SD300)
- Di2 Wireless chip: Yes
