No absolute statement here, but I used Zeus headsets on quite few of the early frames that I built. I agree that the race hardness was higher that that of the Record headset races. On a loaded touring bike the headset gets a test, I found brinelling on Record lower race and cups after use. Switching to a Zeus headset made this less likely. When Campi came out with the Super Record headset the races were inserts made from real bearing steel. I did not check the hardness, but they seemed harder than the Record races. So I used Super Record with good results.
Anyway, Spain made some very nice machines given the import restrictions during the Franco era. I was a big Bultaco fan. The Zeus parts were mostly not quite up to par, but the headset was a good one.
Jim Merz Big Sur CA
On Sun, Jan 30, 2011 at 6:15 AM, Amir Avitzur <walawalaoxenfree@gmail.com>wrote:
> >
> > Having just received a pair of Zeus 2000 center pulls (as in
> >
> http://www.flickr.com/
> > )
> >
> I can honestly say that these are the nicest CP brakes I've ever held in my
> hands.
>
>
> I'll check to see if they have any nasty cracking bearing races in their
> pivots ASAP.
>
> >
> > Amir Avitzur
> > Ramat-Gan, Israel