How do you decode the date marks on campagnolo chainsets?

[onegoodbike]

Evening all,

the title says it all really , i know that on a number of occasions i've seen this referred to in threads, but i can't find them now!. Can anyone point me in the direction of the definitive list/method of determining the year of manufacture.

Cheers Matt

 

[Excel]

Re: How do you decode the date marks on campagnolo chainsets

if memory serves me correctly Campag. crank dating started in the 1973....
Diamond = 70s
Circle = 80s
Number = last digit of the year
exceptions 11= '85 22 = '86 33 = '87
late SR always has square outside the number

this site is very informative << http://www.velo-retro.com/tline.html >>

 

[onegoodbike]

Re: How do you decode the date marks on campagnolo chainsets

Thanks for the quick response Excel, I now realise i have another (associated?) question:

Does anyone know when they stopped marking components 'patent campagnolo' and started using 'brev campagnolo' or vice versa?

 

[Midlife]

Re: How do you decode the date marks on campagnolo chainsets

Do you mean on the brakes..... ?

Shaun

 

[onegoodbike]

Re: How do you decode the date marks on campagnolo chainsets

Hi Shaun,

i'm thinking more about chainsets really, although it might be that the change occurred across the whole range at the same time?. Anyway, i've got one set of chainrings and chainring bolts marked 'brev' and one set marked 'patent', and I was just idly wondering which set were earlier?.

Matt

 

[Excel]

Re: How do you decode the date marks on campagnolo chainsets

Thanks for the quick response Excel, I now realise i have another (associated?) question:

Does anyone know when they stopped marking components 'patent campagnolo' and started using 'brev campagnolo' or vice versa?

the Patent stamp mark was revised in '78 to Brev when Super Record was establishing itself everywhere although a lot of Campag. components still being sold bore the Patent mark well into the 80's (possibly old stock at the LBS!)
........now what about the <C> stamp?

 

[ScillySuffolk]

Re: How do you decode the date marks on campagnolo chainsets

...now what about the <C> stamp?

That's a timing mark, introduced with Exa Drive.

It should be opposite the crank arm; on the smaller ring it is slightly offset, so it's visible behind the large ring.

 

[lewisfoto]

Re: How do you decode the date marks on campagnolo chainsets

...now what about the <C> stamp?

That's a timing mark, introduced with Exa Drive.

It should be opposite the crank arm; on the smaller ring it is slightly offset, so it's visible behind the large ring.

If you are referring to the <c> found on the headsets then those disappeared in the mid '70s.

Also the "patent" vs "brev" is a little more complex: Campagnolo seemed to go back and forth between the two words. The dust caps on the NR cranks started with patent and then in the mid 70s switched to brev but other parts continued with patent or sometimes abbreviated to pat. as on the Nuovo Record rear mechs. The Nuovo Record rear mech is an interesting example because it has the pat + year on the top and brev int. underneath. It does seem that the older, 50s, Campagnolo parts were more likely to be stamped with patent.

 

[bugloss]

Re: How do you decode the date marks on campagnolo chainsets

Don't forget those cranks with no date stamp. ( thought I'd put that in to muddy the waters)