[/b]I have heard this term used on the forum, but have never experienced it on my 2006 GTS250ie. The facts: I purchased the scooter six months ago with 1000 original miles on it (with it's original Sava tires). Now with 2400 miles, I decided I'd pushed my luck far enough on nine year old rubber. Road eighty miles to the closest Vespa dealer and had a new set of Heidenaus mounted and balanced.
On the ride back home, the tire balance seemed fine up to 65 mph. Above that there is vibration in the hand grips. I don't recall the original tires having any of this. I called the dealer and he said they rarely have any complaints regarding their balance procedures and tbe vibration is nothing to be concerned about. I guess my question is, do you consider this a wobble, a balance problem, or merely a normal characteristic of the GTS250 ?