Shimano Ultegra Di2 6870 11-Speed RD-6800 Inner Plate GS TYPE - Y5YC25000 Shimano Small Parts Road Bike Ultegra Di2 6870 11-Speed Small Replacement Part for: Shimano RD-6800 Inner Plate GS TYPE Used as part of Shimano Bike Parts; Ultegra Di2 6870 11-Speed