I share Wayne's skepticism regarding the connect between "11" markings and warranty replacements. I have seen "11" markings on lots and lots of crankarms and hub locknuts and several derailleurs. I think the late SR rear ders. were just unmarked, while the NR's were marked with the "11". In any case, the "11" markings appeared on all of the parts that were normally date marked (hub locknuts, derailleurs, crankarms), though these markings were not restricted to "last of their generation" parts. Two examples: 1) The traditional grooved crankarms, the ungrooved stamped-logo arms and the ungrooved etched-logo arms all were marked "11". 2) the locknuts on the standard hubs were marked "11" as were the lockmuts on the late-production (ugly) flat-dustcap hubs. I think Campy went to the "11" marking for all post-1984 SR production, which means that all 1985 through 1987(?) production was marked this way. This seems consistent with my finding these markings on almost all lightly used SR parts and is also consistent with the total lack of post '84 date stamps. The alternative is that Campy actually stopped regular SR production after 1984 and just made a huge, huge run of warranty replacements. Not likely, as too many other parts (brakesets, pedals, BB's etc)exhibited subtle chganges during those last two or three (post C-record intro) years.
Tom Dalton
>
> I have one of the PAT 11 NR rear derailleurs and I
> too had heard that the 11
> signified a warranty replacement part, but I've
> always wondered about that.
> In the case of the infamous crank arms, that might
> seem logical, but a NR
> rear-d? I don't recall any history of these being
> prone to breaking or
> failing in some way. How many "bad" ones would it
> take to justify a special
> production run of replacements? The unit I have was
> given to me by a friend
> who found it in a second-hand shop in Italy. It was
> brand new, in it's
> original box with the original instruction sheet.
> Exactly the same as any
> other new derailleur would be. Certainly looks like
> it was meant for
> commercial sale as opposed to warranty replacement.
>
> As I started to think about it, the only PAT 11
> components I've seen have
> been the "last" of their generation. My NR rear-d
> follows suit. Of course,
> now Mark identifies two crank styles with the 11,
> grooved and non-grooved
> arms. The non-grooved arms were the last of the SR
> run, but what about the
> others Mark mentions? Could they, indeed, have also
> been manufactured in
> the last year? What other markings, if any, appear
> on other non-grooved
> arms? What other components have the PAT 11
> identifier and which models do
> they appear on?
>
> I just have an inquiring mind, I guess. And if the
> CR collective can't
> figure this, no one can. But then again, the more I
> learn about the Campy
> timeline (the real-time one, not Chuck's fine
> chronology), the more I
> realize that, with Campy, nothing is absolute.
>
> Wayne Bingham
> 82F degrees in DC yesterday, 40 tomorrow!
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