I’m not a lawyer, but I’d expect that: if you have valid Romanian insurance covering that specific bike on UK roads, then you’re probably covered.However, I’ve never heard of a policy issued in one country and valid all year round in another country. In the UK, policies tend to cover you for driving on the continent, but only for a limited time (say 30 days at a time, and maybe with a maximum of say 90 days in a year).
But I assume it must work differently on the continent. There are lots of people who will live in one country and work in another, and go shopping in maybe another, and then take weekend breaks in maybe another. If I lived in the Alsace, would my insurance be permanently valid in both France and Germany? I don’t know, but I assume that some mainland european insurers must be offering a permanent multi-country policy.What does it say in your policy? It must say which bike it covers and in which country and for how long (Read the whole thing, including the small print)