#1) None of mine.. look up recall data. yourself.
Aluminum welds have failed, and if its a hinge plate to tube weld that renders the bike DNF.
applies to any bikes with aluminum frames, lookup that list, yourself..
I have heard the past Mk2 brass fillet butt brazing of the brommy tube to hinge plate on the main tube had problems ,
I had one, bought used, no problems with mine .
the fillet brazing was a skill they trained people to do. nobody is perfect. then there is the rider abuse factor..
my new, used, Mk 4 uses a different way of making the hinge that eliminated that happening..
and that job could be done by automated processes, with repeatable consistency..
Why does this matter to you, what do you intend to do with the answers?