Joe is right, I've done this more than once. The crown race and upper and lower pressed cups are the same for French, English and Italian. I believe Mike Kone, when he had Bicycle Classics, used to sell the French threaded adjustable cup and top nut for people who wanted to do the opposite - convert an English HS for use on a French bike. The only other difference is the keyed washer than goes between the adjustable cup and the top nut. Italian steerers typically had a keyway slotted into them, with a matching key on the washer, while French steerers were flatted on one side, requiring a flat in the washer. English threaded steerers came both ways with bikes actually made in England often having flatted steerers like French bikes.
Regards,
Jerry Moos Houston, TX
Joe Bender-Zanoni <joebz@optonline.net> wrote: No threaded parts, but the crown race and the upper and lower pressed races should work.
Joe Bender-Zanoni
Great Notch, NJ
> I have a French bike with the cool old Campy headset that has the in
> the lower cup. I may want to strip this bike and put the parts on an
> Italian bike. Can any of the headset pieces be used?
>
> Thanks,
> Marcus Helman
> Huntington Woods, MI