Never noticed any handlebar vibes at any speed, but the footboards get some at speeds over 70. Funny thing, though, after a few miles at that speed, it doesn't seem to be a problem and I just ignore it. True, the 900 isn't a great freeway blaster, but then, we tend to avoid the slab whenever possible. Nice thing about being in Alaska--there's not much in the way of a freeway. Short one south of Anchorage before the Seward Hwy turns back into a 2-lane, and 40 miles north on the Glenn Hwy to Wasilla where it becomes a 2-lane, as well.
I just need a different windshield. I have the largest Memphis Fast shield and above 55 mph, I get some bad buffeting. It's too bad, because I like the quick-disconnect shield feature. I don't get the same thing on my wife's LT. Go figure.
"Don't sweat the small stuff---it's all small stuff"
'09 650 VStrom