Fitting mirror extensions on a scoot with one left hand threaded mirror (ala Yamaha, and others..) is proving to be a test of patience and web searching.
The extension that accepts an 8mm reverse threaded mirror had to come from HongKong, the mirror reverse end adapters from the USA, and now waiting on M10x1.25 cap head screws (to put the extensions on the adapters) to come from the U.K. Not even fastenal carried these...
The conversion isn't expensive. ...just time consuming. If it isn't suitable. ..only alternative is the $80 set of mega stem mirrors to replace the handsome stock Piaggio items..... which would be a bummer.
4th scooter I've had to alter mirror length....each proved a test.
Stig
PS: well, there is another alternative --- I could ride faster than ALL nearby traffic. But that's not going to happen.