In Switzerland, you can have a licence plate for your motorcycle only with proof of insurance. (Licence plate delivered only with proof from your insurance company) So they came up with a great arrangement: as you can only ride one bike at the time, you can have two motorcycle and the bigger one covers the smaller one. I lived in Geneva for a few years so I had a 250cc scooter and the GW1500. Just one licence plate with a clip-on system... So when just riding to work, cliped the plate to the scooter, and when going for nice long rides, on to the GW. Saving some money too.