Buongiormo,
Vespa has been running on little wheels for decades with good results, even while touring at speed.
No argument there.
I have but two routes to get out of my neighborhood for my coffee stops. Both ways involve sections of road littered with frost heaves every 25 feet - one for a distance of 1/4 mile, the other for 3/4's of a mile.
Now, on a 5,000lb* Burgman these heaves are barely a tickle to the suspension - but on the LIKE200eye these bits of road are
punishment to the panels. I'm afraid I'm going to knock out the filaments of all my bulbs! I can go slow, and bang along; or fast - and bang along.
But, at 40mph on a big wheeled (16" & 15") Piaggio I can fairly skip over these miserable sections. And perhaps that is why Piaggio has sold 900,000 of this type of scooter in Europe? (Roman roads could be suspect now that J. Caesar has become a salad dressing.)
Really, it's just a matter of fizziks.
Addio,
Stig
*not a typo