Originally Posted by
JohnJ80
I don’t agree. If anything the damper would limit oscillations of the frame and change the mechanical resonance. Think what happens if you were to put a rubber piece in the middle of a tuning fork.
it depends how much damping there is in that flexible part. It could actually act more as an un-damped spring, which would tend to make things worse at the resonant frequency.
This makes me wonder about bikes like the Specialized Roubaix. Early versions of that had an undamped spring above the headset. The latest version also has a damper.