Yes. The skid plates are interchangeable between XX SL, XX, and X0 Eagle Transmission derailleurs. The outer parallelogram links are also replaceable and interchangeable between XX SL, XX, and X0 Transmission derailleurs. Please refer to the Eagle AXS Transmission manual, as the removal and installation process is slightly different on the XX SL outer link. You can also reach out to SRAM Rider Support with questions!