My bike came with Shad panniers and the 3P fitting kit. I won't be using the panniers much so intend to remove the rails and refit when required. The instructions show that a part should be removed but I have no idea what this is and I can't find it on any exploded diagrams. Can anybody tell me what Item A is?Shad3P.JPG - Bild entfernt (keine Rechte)Thanks