The Shimano Dura-Ace RD-R9250 Di2 Rear Derailleur delivers the fastest and most precise shifting in the 12-speed lineup. This medium cage component features carbon fiber construction to keep the weight at a mere 136 grams for elite racing performance.
This black Di2 derailleur provides seamless electronic gear changes for adult road cyclists. Its refined design ensures reliable operation and a clean look for high-end builds using the latest Shimano drivetrain technology.
Quick Facts
| Feature |
Specification |
| Drivetrain Speeds |
12-Speed Di2 Electronic |
| Cage Length |
Medium Cage |
| Material |
Carbon Fiber |
| Weight |
136g (0.3 lbs) |
| Mounting Type |
Braze-On Mount |
| Color |
Black |