I wanted to overhaul the headset of my old roadbike. Upon "opening" everything I discovered that the fork crown (the piece where the ball bearings "roll" on) is not tight, maybe 1 mm play. I put it all back together and had it tight and no shaking, etc. After driving a little bit I tested by pulling the brakes and seeing if there is any play and there was.
Could it be that 1 mm play is the cause?
If so can I get a new fork crown that is more tight or is the problem the fork, near the crown....
Thanks for any advice.