This cover for the open hole beyond the swingarm pivot is made of aluminium and available in silver or black anodized or in blue or red.
It gets fixed on the left side.
Also referred to as frame plug.
The adjustable gear lever for the BMW R1200R LC is made of...
The Victory-X rearview mirrors are made of black aluminum...
Oil filler plug Torx, made of high-quality aluminium....