Moin, I am currently looking for a trailer (braked/1000-1300Kg). It should be both a “normal” means of transport for the hardware store etc. and it should be possible to transport a motorcycle. My motorcycle is 2,10m long, in principle there would be a box trailer of various manufacturers with a loading area of ~2,50. However, the trailer is already a bit too big for the “daily” use. I have a smaller trailer in my eye (2,03m) where you can see the the rear and rear side of the board can open and remove. Accordingly, the motorcycle is over. Perhaps only in front to reach the support load or but also in front and back. But how does this work now from the legal side? May I drive without board walls, or can the load in front and back survive or do I have to mark it already at 5-10cm? The question also refers to “European law” as I probably measure the trailer with motorcycle towards the south (France/Switzerland/Spain/It alien). Thank you for your information. Greeting from the Saarland