I've been away a few days, not sure if this inquiry was addressed yet.
The aluminum Campy SR pivots were provided during a shortage of titanium. I forget the exact years or duration of the changeover but it preceded my time with the company of early 1983- late 1984.
I saw lots of them during my tenure with Campagnolo USA and always found a way to "swap them out" for the owners who were happy to receive the magical titanium while I was happy to build my cache of oddities.
Brook Watts Longmont Colo
>
>
>Listers,
> Couple months back I came across a 1979 Campy SR Rear Derailleur that had
>Campy stamped aluminim Alloy pivot bolts. What is history of such? For some
>reason I thought they were an after market addition.
> I knew that OMAS made some after market alloy ones, which I assumed,
>perhaps falsely, were more common than the Campy ones. However, in
>my experience I
>have seen about 4 different Campy SR derailleurs with the Campy alloy bolts,
>and only one OMAS bolt kit that contained their version of the alloy pivot
>bolts.
> Is there a catalog number for the Campy alloy pivot bolts? Did they come
>"stock" that way in a box, or were they seen OEM on bikes? I have many miles
>on one Sr derailleur that has the larger lower alloy pivot bolt and never had
>any problems with it bending/performing etc. Can the same be said about the
>upper alloy pivot bolt? Can the same be said of the OMAS versions?
> I have heard a lot of speculation that the upper one will always
>"pull-out" of the frame, it happened to my cousin's brother, etc.,
>etc., but nothing
>in first hand based reality.
> Does anybody have/ride with these alloy items? When was their
>manufacturing dates? Any and all help much appreciated.
>cheers-
>Dave Anderson
>Cut Bank MT