Here they don't care about what is legal and what is not, they won't "steal" the bike from you but they will give you a really hard time if they can't confirm the number and they might tote you to jail for not cooperating. Telling them not to take off parts of the bike is not going to stop them. I will have to figure this out well and I am going to make a lesson out of it for me so I can do this is necesary. They don't bother me to much because of my appearance, but better know how to do this than be sorry....