Joined: Apr 2007
Posts: 12,565
Likes: 2,740
From: Thunder Bay, Ontario, Canada - burrrrr!
Bikes: 1958 Rabeneick 120D, 1968 Legnano Gran Premio, 196? Torpado Professional, 2000 Marinoni Piuma
You must have a tab washer between the top cup and the lock nut. Perhaps this article I wrote on
Rebuilding a Vintage Head Set will help.
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"98% of the bikes I buy are projects".