This Outer Plate & Fixing Bolt can only be used with Shimano Ultegra Di2 RD-R8050 11 speed rear derailleurs.
If the correct Outer Plate & Fixing Bolt is unavailable you can also use the plate & bolt from the following rear derailleurs:
– Shimano Dura-Ace Di2 RD-R9150-SS
– Shimano Ultegra RD-R8000-SS
These are a “B” match which indicates that the parts are usable, but differ in materials, appearance, finish & size etc.
Genuine Shimano replacement part.
Specifications
| Groupset | Ultegra Di2 |
|---|---|
| Type | Outer Plate |
| Weight | 29g |
| Series | R8050 |
| Speed | 11 |







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