Hello,
I have a pair of Campy Super Record cranks that are on an '83 Olmo Professionista bicycle. I am not sure if they are original to the bicycle or not, but I will assume they are. There is no way to tell what year they are from (or length without actually measuring) as the inside of the crank arms are milled or "fluted". I was curious if it was common to see this type of milling on Super Record crank arms? I haven't seen this on any other ones, but I can't say that I have seen a ton of cranksets. It is very nicely done and I would imagine cuts some weight off of them as it is fairly wide and deep. I have seen plenty examples of chainring and shifter drilling, but not this. I can post a link to a picture next week when I return home.
Thanks,
Bruce
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Bruce Audino
New York City, NY
USA