Modern Vespa

Hello Friends,

I've got a 1977 vespa primavera 125 et3 and have this squeaking noise when driving faster.
Not when driving slowly or changing gears, hitting brakes or pulling the clutch so I really have no idea where its coming from.
Seems to be something in the front tho

Any suggestions appreciated.

Thank you.

here's a recording of the noise
https://youtube.com/shorts/FPVZXDRpU20?feature=share

Moved to NSM, as the ET3 is decidedly vintage.

if it's from the front I'd suspect something speedo related: cable, drive, housing

but if it's engine, that sounds like a bearing over-running or possibly spinning in its bore, or if it's under power it might be gear whine which could come from a whole host of things: low or contaminated oil, worn gears, worn bearings affecting the gear clearances, etc