cadillacmike68

Hi, I might need to find a "CSPC compliant" crank arm set and would like to know if anyone knows the date code used by Campy in the 80s. I know that the number in a diamond was for the 70s, but don't know the 80's identifying mark. Was it a circle??

dbakl

Never been much for that level of minutia, but my '84 Cinelli appears to have a zero in a square if it helps.

cadillacmike68

That's strange. I found this from a Campagnolo timeline site:

Some Campagnolo parts can be dated by codes or patent dates. For example, the Nuovo Record rear derailleur has a patent date that corresponds to its manufacturing date starting in 1970 (example "PAT. 70"); marked "PATENT" before 1970. The lock nut on the hub axle typically is stamped with "CAM. 60" or some other number denoting the last two digits of the year of manufacture. The word "RECORD" was added to the hub barrels around 1963. The original "Open C" style Campagnolo logotype (imagine a U turned on its side) on the Q.R. levers was changed to a "closed C" in 1958 with the introduction of the one-piece alloy Record hubs and a little later to the shift levers. Starting in 1973 the crank arms have a code consisting of a diamond (1970's), circle (1980's), square (late Super Record), with a number in the center denoting the last digit of the year of manufacture (some exceptions:11=1985, 22=1986, 33=1987 plus others).

That would make your cranks dates 1990 ???

however the notation that late super record manafacture was in a square further confuses the issue, especially since Super Record parts were last made in 1987 according to the same site:

https://www.velo-retro.com/tline.html

so I think that timeline helps, but your crank arms mystify me...

It wouldn't matter except that I found out the hard way that a super record front dreailleur with the "safety lip" won't clear my 1973 record crank arms!!!

dbakl

oops, sorry, I just looked again with a loupe and a flashlight in my basement; it an 11 in a square, but original to the bike. I bought it new, 1984, definitively not 85. Nothing has been changed but the bar tape, seat, freewheel and tires.

cuda2k

I picked up this information from a website specalizing in selling NOS Campagnolo gear.

From 1958 - 1972 Record crank arms were not dated on their back side
From 1973 - 1979 the year of crank manufacture is the last digit in a diamond
From 1980 - 1984 the year of crank manufacture is the last digit in a circle
"11" in a rectangle means 1985, "22" means 1986, and "33" means 1987.

Seems to be contrary to what dbakl states, but perhaps he got a very early 85 crank on his 84 bike?

dbakl

Yeah, you can certainly put your trust in everything you read on the internet! (jokingly)

cuda2k

Now I'm gong to have to go home and check the crank arms on (what I am told are) my 1986 S.Record group.

vpiuva

I like my undated 144BCD arms

cadillacmike68

just don't try to put a safety lipped front derailleur on the bike!!!

brunopearson

So I have a second generation Super Record Rear Derailleur with "21 in a Square".
What year would that be

PX10

My crank arms have a diamond stamp with a zero inside. Any ideas to the date? I always thought them to be mid to late 70’s. I got them from my Uncle, an avid cycling buff. Unfortunately he has dementia and cannot help me. I remember him having an early Parsmiint and a Raleigh full campy. Later he had an Eddy Mervyx. Any ideas to the year these cranks are? I’d like to find a home for them. Thanks.

Spaghetti Legs 

This is correct, although off the top of my head I think it might be 21 and 31 for ‘86 and ‘87

mech986 

That would be 1980.

RRAlategoer

To @brunopearson,
Those don't look like Super Record of any generation to me.
The 2nd gen. definitely have flat rear parallelogram plates, yours look very curvy.
Velobase and Disraeli gears will help with image photo id'ing for you.
Hope this helps
Robin.

Steel Charlie

And Italian "rule" compliance and record keeping

RRAlategoer

OK, done a quick bit of following my own suggestions.
These gears are

Campagnolo Record (A010 'C-Record' 1st or 2nd style)

More likely the later 2nd style due to that curvy back plate but it should be stipple, so then again as it's the shiny one it looks like the 1st style - from Disraeli Gears invaluable site.
And Velobase has production years as '87 - '89.
Another mystery solved!
Regards from the ever-helpful,
Robin.