Quote Originally Posted by 34nineteen View Post
"Usually" raising the bike (lowering the tubes) tends to lead to high speed unstability. Usually...

Can you now see the stopper rings (#19) on the tubes? Maybe a PO pulled the rings off the tubes and lowered the front too much? Usually with those in place, the front end can only go down so far... but with the clamps loosened you can slip over them with enough pressure.

I lowered the front of the bike to make wobble go away. Stopper rings were not visible before the adjustment.