Scooterotica

I recently went out on my GP halfway through the ride the scooter has developed bad vibration resonating through legshield and headset.
I’ve changed engine mounts for mb and also changed dampers but still there.
There’s no play in steering and can’t see any thing touching the frame ie inlet manifold.
Can anyone suggest any other places to look

Not something daft like your headstock clamp bolts have come loose , wheel bearings ?