I had a set of Ora's on the cruiser for 10 years, always blew in until I got a magnetic support arm, driverside only.
No Matter what I did including a completely new set I could not get them to stay on the Disco mirrors.
Now have a set of Milenco Areo and have no problems, the drivers side still blows in - as any mirror clipped onto a folding mirror base will do,- but the support arm from the Ora's fits fine and it never moves with that on.
I have probably towed 12-15K with the Milenco's and I would buy them again.
DD

