For use with Shimano GRX RD-RX810 11 speed rear derailleurs.
This P-Cover Unit can also be used on the following rear derailleurs:
Shimano GRX Di2 RD-RX815
Shimano GRX RD-RX400
These are an “A” match which indicates that the parts are the same in materials, appearance, finish & size etc.
Genuine Shimano replacement part.







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