GTS Wobble - Is it a Thing?!

There a lots of forum posts and some YouTube videos talking about steering wobble in the Vespa GTS. I explore the issue, and speculate as to one possible reason that I do NOT have it on my GTS 300 HPE. Chapters: 0:00 Intro 0:43 Steve’s demo of wobble 1:42 CycleWorld articles explaining wobble 4:20 Old motorcycle video demo 7:32 My demo ride Links to things mentioned in the video: Scooter in Sticks Vespa GTS Wobble video:    • Vespa GTS Front-End Wobble -- Is it a Prob...   CycleWorld Wobble Article 2018: https://www.cycleworld.com/why-do-mot... CycleWorld Wobble Article 2019: https://www.cycleworld.com/motorcycle... This wasn't mentioned, but it is an interesting article that discusses bicycles, but is related: "The bicycle problem that nearly broke mathematics" https://www.nature.com/articles/535338a