Jerome & Elizabeth Moos wrote:
> Got me on that one. Quite a few Zeus parts were stamped with "M"
> meaning metric (French) thread. English thread was often stamped
> "BSC". Never seen (or perhaps never noticed) a Zeus part stamped "C"
> before (could the "BS" be worn away?)
No, I don't think so. The BSC stamp is usually closer to the spindle
hole (see http://www.os2.dhs.org/~john/Zeus-cranks/Zeus-H-back.jpg, for
example). And the metric cranks also have the single letter stamp, but
without a thread designation -- see
http://www.os2.dhs.org/~john/Zeus-cranks/Zeus-g-back.jpg, which is a
metric thread arm and compare with
http://www.os2.dhs.org/~john/Zeus-cranks/Zeus-G-back.jpg, a BSC thread
arm, with BSC stamped into the arm.
> Zeus parts were made for several decades, so it would seem unlikely
> they could represent the year with a single letter (without a diamond
> or circle ala Campy). Perhaps a code for crank length?
No, arm length is already marked numerically on all the arms. I still think it's a date code, but probably the key has been lost with the company.
-John Thompson (firstname.lastname@example.org)
Appleton WI USA