Not going to detail all the methods I've explored in order to solve my mirror problem on my new Piaggio Liberty.
(it's "my mirror problem"....because these Vespa mirrors suit nearly everyone else)
I cannot adequately see behind myself with the stock mirrors.
So, after a few months of experimenting and searching, phoning, & emailing near & wide - I took these "bike helmet mirrors" and attached them to my Piaggio mirrors.
Looks goofy - but is the least goofy looking solution.
And it works.
2" convex mirrors fixed to 2" bike helmet mirrors on pivoting arms.
I've owned 4 scooters - and have had to fix the mirror situation on each one of them.
Stig