Originally Posted by
verktyg
BTW - Zeus bikes used metric threads and took a 22.0mm stem. The standard Zeus headsets were far superior to the Campy headsets of the day.
Oops, looks like you're right. The two Cinelli (22.2) stems Wildwood gave me to try won't go in the steerer tube, but the old Peugeot one I have works.
So we're looking at a French threaded headset, meaning the standard threaded parts I have won't fit even after I clean up that messed up thread on the end. And the thread-cleaning file linked to above won't do that job because it only goes down to 24tpi? Comparing the threading on the Zeus steer tube to another 1" threaded (Trek) fork I have lying around makes the threading on the Zeus steerer definitely look like a slightly higher TPI count. They don't mesh when held together, thread-to thread.
Anyone got a nice Zeus headset they want to toss in for this project? Or the top half, at least. Barring that, any old French-threaded thing? I know I can get one from VO not too dear, and a guy on 3bay has some NOS Ofmenga ones for $23 shipped.