As I recall, the first generation Syncro levers used the heavy cables and the Snycro II's used the skinny cables. Because the switch to an index-appropriate cable on the Syncro II was the driving force behind the change, it is the first appearence of those shifters that you need to date. I realize that I am answering your question with another question, but it should be much easier to determine when Campy introduced a new indexing system than a new type of cable.
My best guess on the intro of the Syncro II would be that it coincided with the intro of Chorus. I think I remember first seeing ad for Chorus in the fall of 1987.
As a point of general info to all list subscribers I offer the following, and request correction if I am in error:
The oldest Campy cables in my stash are made up of heavy strands wound at a shollow angle relative to the length of the wire. The surface of the cable is somewhat rough. The head is stamped with a C-in-diamond logo on top.
The next newer cables are have the same marking and are the same thickness, but the starnds are finer and are wound at a steeper angle (they wind around more times). The suface is smoother. I think these came around in the early 80's, but I have no real basis for that assertion.
The next cables are identical to those above, but the logo is on the side of the head and is just a plain C. I think of these as early C-record cables, because they are what came with the retrofrictions. That puts them at 1985/86 to 1989 or so.
As I mentioned above, I think the first thin cables came with the first Syncro II's at the time of the Chorus intro. If I'm wrong here it is likely that they came out later when the large-wrap Syncro's came out to operate double pivot (Campag-nono?) rear ders in 1990.
The only subsequent change that I have noticed is the revision of the C logo on the side of the cable end to a "C-in-circle" logo. This is an Ergopower (CTI?) change that took place around 1994 (best quess).
Any better info on my dates?
Thanks, Tom Dalton
P.S. sorry for straying into the 1990's but I was hoping to provide an overview of my observations. The most relevant question to this group might be when the change from the first to the second of the above-referenced designs took place.
Reid <bob.reid1@virgin.net> wrote:
> I'm sure there is an instant answer to this one (but
> I just don't know it)
>
> At what point in time did Campagnolo change their
> gear cables from the old
> heavyweight type (1.56 mm dia) to the more "modern"
> 1.2 mm cable ? for down
> tube levers.
>
> Bob Reid
> Stonehaven
> Scotland
>
> http://www.wheelscycles.co.uk
>
>
>
>
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