In your hand, you do not have a single part. You have two parts, joined by a fastener. Go to MAX BMW Parts Fiche and review the parts diagrams to identify the individual parts that you need. They may still be available from BMW.
BMW Motorcycle Parts | Catalog Parts Online | MAX BMW Motorcycles
MAX BMW Motorcycles offers an extensive BMW Motorcycle Parts fiche. OEM BMW Motorcycle Parts and Accessores can be ordered online for fast delivery. View our detailed BMW Motorcycle Parts diagrams and locate the part that you need efficiently.