Hi Roo
Definately NOT Chorus my friend.
I suspect Athena, but like Jim, am not 100% because of the finish, it looks as others say "lacquered". I have an Athena on 1 of my bikes and its is anodised with a super smooth high class finish, BUT same dome shaped appearance.
I only know for sure, Campagnolo seriously messed around with the quality of their stuff through the 90's, hence the chaos and confusion with identification of nearly all their gear from that period.
Xenon have the same appearance, but where simply awful, with some kind of spray on coating on them. The cranks anodised seriously quick and went powdery. I know this because I recently re-polished 1.
To my knowledge Veloce had thin chainrings, that looked cheap and pressed out, not very campy quality at all. Veloce rear mech was unstamped on the fixing bolt. Chainring bolts where also unmarked with the usual campy stamp on them. Veloce was a cheap set.
To add further to your dilemma, Chorus 2nd gen was made in 2 styles, the early 1 was pure class & quality, milled sections, very precise, the second era of the
same was cast/pressed out no milling to the rear. I know this because I have both types fitted to 2 of my other bikes.
I guess my point is this, " It may be Athena from the back end of production when they started getting real sloppy about their quality ". Shape is Athena 100%, but what Campagnolo shipped it out as is anyones guess buddy
Here is what Velobase have to say:
Athena was below the C-Record and Chorus groups in the late 80's and into the 90's. The cranks are very similar to the Chorus and Croce d' Aune groups and are often confused for one another.
The Campagnolo Athena crankset is manufactured from forged Avional aluminium, stress relieved, polished and anodised to a jewellike finish give the Athena crankset a look that is distinctly Campagnolo.
The crank arms are availabe in your choice of either 170mm or 172.5mm lengths. Complementing the crankset are chainrings in a full range of sizes, they are available from 39 to 44 teeth for the inner and from 48 to 53 for the outer. Like all Campagnolo chainrings the teeth are precision machined, one by one, not stamped like most other chainrings.
The pic is borrowed from their site as reference. Hope this helps buddy, yours Laz.
