Re: [CR]Zeus crank letter codes

(Example: Production Builders:Frejus)

Date: Mon, 23 Jan 2006 13:26:57 -0800 (PST)
From: Jerome & Elizabeth Moos <>
Subject: Re: [CR]Zeus crank letter codes
To:, classic list <>
In-Reply-To: <>

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?) 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?


Jerry Moos Big spring, TX

John Thompson <> wrote: Zeus crank arms have a single letter stamped on the back of the arm; I suspect this is a date code. Does anybody know?


-John Thompson (
Appleton WI USA