Re: Chinese mirrors ... Not bad!
A little late for you this time but in the future...Always, always, always thread a long wire tie through the mirror and the mounting point and secure it with enough slack to allow the mirror to hang free to catch the mirror if it should fall off on a bump or brush. When you put the mirror on the bike, just carefully thread the excess wire tie back into the mirror housing. Cheap insurance. Once upon a time someone was selling a set of thin cables to do the same job.
One special note, change the wire ties every couple of years as they get brittle and check after the dealer messes with them as mine regularly fails to replace wire ties he removes.
US Army (Ret)
I don't like making plans for the day....because then the word "premeditated" gets thrown around in the courtroom.