Moin Moin to all biker colleagues, I am still quite fresh in the biker scene and have some questions about what google, can not give me a clear answer. Therefore, I am looking for experienced bikers who can give me some advice about this. And that is what every biker wants to care for and beautify his motorcycle. These are attachments, which are legal and others are not. I am particularly interested in the following items: So, I have radiator figures and additional headlights he has seen motorcycles passing by before, but think to myself that they are not necessarily legal. I had thought about installing a siren, but the ones I found all have no STVO approval, so what do they do? If someone has a few tips, that would be great and would help me very much… Best greeting, TK