This Inner Plate can only be used with Shimano 105 RD-R7000 11 speed Medium Cage (GS) rear derailleurs.
The following are a “B” match which indicates that the parts are usable, but differ in materials, appearance, finish and size etc.
– Shimano Ultegra RD-R8000-GS
Original Shimano parts guarantee that all components work perfectly for optimum performance and maximum safety and longevity.