With the fast and accurate Di2 shifting technology the Shimano 12-speed Ultegra RD-R8150 rear derailleur is extremely versatile thanks to a single cage length option compatible with 11-28 11-30 and 11-34 cassettes.
Compact design includes an integrated wireless unit charger switchWider range capacityMax. low sprocket 34tLED status indicatorBattery indicator pairing adjust mode etc.
| Largest Cog |
34 |
| Rear Der/Shifter Compatibility |
Shimano Road Di2 |
| Rear Derailleur Mount Type |
10x1 Standard |
| Drivetrain Speeds |
12 |
| Chain Wrap Capacity (teeth) |
39 |
| Cage Length |
Medium |
| Color |
Black |