- Shimano color: Series Color.
- Sales model code: FDR9250.
- Total capacity 16T.
- Type of assembly: to weld.
- Tying type: Tiraggio from below.
- System type: Di2.
- Maximum crown dentition: 46-55t.
- Compatible chain: 12-Speed hg.
- Front wheel speed: 2 crowns
- Adapter type.
- Brazed-on.
- Number of rear relationships: 12 Speed.
