Campy CDA crank date code

* * Chas

I picked up a Campy Croce D'Aune gruppo last week. The date code on the
crank arms is 41 in a square. I haven't been able to find what year that
translates to.

Chas.

Guy Anderson, Sr.

On Wed, 28 May 2008 01:02:12 -0700, "* * Chas"
<verktygjunk@aol.spamski.com> wrote:

>I picked up a Campy Croce D'Aune gruppo last week. The date code on the
>crank arms is 41 in a square. I haven't been able to find what year that
>translates to.
>
>Chas.

Are you sure it's not 81 in the square? (Look with a magnifying
glass.)
>

Hank

On May 28, 7:42 am, "Guy Anderson, Sr." <guyfander...@bellsouth.net>
wrote:
> On Wed, 28 May 2008 01:02:12 -0700, "* * Chas"
>
> <verktygj...@aol.spamski.com> wrote:
> >I picked up a Campy Croce D'Aune gruppo last week. The date code on the
> >crank arms is 41 in a square. I haven't been able to find what year that
> >translates to.
>
> >Chas.
>
> Are you sure it's not 81 in the square? (Look with a magnifying
> glass.)
>
>

I hope you don't mean to imply that it was made in 1981, because the
Croce D'Aune group didn't hit until 1986 or so.

carlfogel@comcast.net

On May 28, 2:02*am, "* * Chas" <verktygj...@aol.spamski.com> wrote:
> I picked up a Campy Croce D'Aune gruppo last week. The date code on the
> crank arms is 41 in a square. I haven't been able to find what year that
> translates to.
>
> Chas.

Dear Chas,

Could the "41" be just the minimum number of teeth?

"1967: The Record crankset is changed to a 144mm bolt circle (41 tooth
minimum) from the previous 151mm bolt circle (44 tooth minimum)."

http://www.campyonly.com/history/timeline.html

Cheers,

Carl Fogel

Guy Anderson, Sr.

On Wed, 28 May 2008 16:33:28 -0700 (PDT), Hank <hank@wirtznet.net>
wrote:

>On May 28, 7:42 am, "Guy Anderson, Sr." <guyfander...@bellsouth.net>
>wrote:
>> On Wed, 28 May 2008 01:02:12 -0700, "* * Chas"
>>
>> <verktygj...@aol.spamski.com> wrote:
>> >I picked up a Campy Croce D'Aune gruppo last week. The date code on the
>> >crank arms is 41 in a square. I haven't been able to find what year that
>> >translates to.
>>
>> >Chas.
>>
>> Are you sure it's not 81 in the square? (Look with a magnifying
>> glass.)
>>
>>
>
>I hope you don't mean to imply that it was made in 1981, because the
>Croce D'Aune group didn't hit until 1986 or so.

Thanks for pointing out my erroneous implication. In this group,
someone of vastly superior knowledge is always quick to correct such
faux pas.

Hank

On May 28, 4:52 pm, carlfo...@comcast.net wrote:
> On May 28, 2:02 am, "* * Chas" <verktygj...@aol.spamski.com> wrote:
>
> > I picked up a Campy Croce D'Aune gruppo last week. The date code on the
> > crank arms is 41 in a square. I haven't been able to find what year that
> > translates to.
>
> > Chas.
>
> Dear Chas,
>
> Could the "41" be just the minimum number of teeth?
>
> "1967: The Record crankset is changed to a 144mm bolt circle (41 tooth
> minimum) from the previous 151mm bolt circle (44 tooth minimum)."
>
> http://www.campyonly.com/history/timeline.html
>
> Cheers,
>
> Carl Fogel

Carl-

That's unlikely, since the CDA crank had a 135mm BCD, like all Campy
full-sized doubles from C-Record onwards. Rings were available as
small as 39t (didn't TA make a 38?).

Hank

A Muzi

>> "* * Chas" <verktygj...@aol.spamski.com> wrote:
>>> I picked up a Campy Croce D'Aune gruppo last week. The date code on the
>>> crank arms is 41 in a square. I haven't been able to find what year that
>>> translates to.

> carlfo...@comcast.net wrote:
>> Could the "41" be just the minimum number of teeth?
>> "1967: The Record crankset is changed to a 144mm bolt circle (41 tooth
>> minimum) from the previous 151mm bolt circle (44 tooth minimum)."
>> http://www.campyonly.com/history/timeline.html

Hank wrote:
> That's unlikely, since the CDA crank had a 135mm BCD, like all Campy
> full-sized doubles from C-Record onwards. Rings were available as
> small as 39t (didn't TA make a 38?).

38t SR-Sakae and later TA for the 130 format, never saw one for 135mm

I never noticed any pattern to Campagnolo crank markings of the era so I
can't help with the OP's query.
--
Andrew Muzi
<www.yellowjersey.org/>
Open every day since 1 April, 1971
** Posted from http://www.teranews.com **

carlfogel@comcast.net

On May 28, 8:42*am, "Guy Anderson, Sr." <guyfander...@bellsouth.net>
wrote:
> On Wed, 28 May 2008 01:02:12 -0700, "* * Chas"
>
> <verktygj...@aol.spamski.com> wrote:
> >I picked up a Campy Croce D'Aune gruppo last week. The date code on the
> >crank arms is 41 in a square. I haven't been able to find what year that
> >translates to.
>
> >Chas.
>
> Are you sure it's not 81 in the square? *(Look with a magnifying
> glass.)

Dear Guy,

The mysterious "41" in the Croce crank showed up in another thread
about three years ago:

"Sorry, don't know what the 93 in the square means. My Croce cranks
have a 41 in a box, so it's not year of manufacture."

http://www.bikeforums.net/showthread.php?t=107929

They never decided in that thread what the "41" and "93" meant.

Cheers,

Carl Fogel

* * Chas

"Hank" <hank@wirtznet.net> wrote in message
news:ce584ad8-dd79-4752-8faa-9c728664f2f8@l28g2000prd.googlegroups.com...
> On May 28, 4:52 pm, carlfo...@comcast.net wrote:
> > On May 28, 2:02 am, "* * Chas" <verktygj...@aol.spamski.com> wrote:
> >
> > > I picked up a Campy Croce D'Aune gruppo last week. The date code on
the
> > > crank arms is 41 in a square. I haven't been able to find what year
that
> > > translates to.
> >
> > > Chas.
> >
> > Dear Chas,
> >
> > Could the "41" be just the minimum number of teeth?
> >
> > "1967: The Record crankset is changed to a 144mm bolt circle (41 tooth
> > minimum) from the previous 151mm bolt circle (44 tooth minimum)."
> >
> > http://www.campyonly.com/history/timeline.html
> >
> > Cheers,
> >
> > Carl Fogel
>
> Carl-
>
> That's unlikely, since the CDA crank had a 135mm BCD, like all Campy
> full-sized doubles from C-Record onwards. Rings were available as
> small as 39t (didn't TA make a 38?).
>
> Hank

Carl,

It's a date code of 41 in a square on both cranks. The CDA gruppo came out
in 1988 with a 39T minimum chainring.

Hank,

There are some after market 38T chainrings for 130mm BCD cranks but 39T is
minimum for a 135mm BCD. The chain just about drags on the spider with 38T
rings on a 130mm Bcd crank.

Chas.

Qui si parla Campagnolo-www.vecchios.com

On May 28, 5:52*pm, carlfo...@comcast.net wrote:
> On May 28, 2:02*am, "* * Chas" <verktygj...@aol.spamski.com> wrote:
>
> > I picked up a Campy Croce D'Aune gruppo last week. The date code on the
> > crank arms is 41 in a square. I haven't been able to find what year that
> > translates to.
>
> > Chas.
>
> Dear Chas,
>
> Could the "41" be just the minimum number of teeth?
>
> "1967: The Record crankset is changed to a 144mm bolt circle (41 tooth
> minimum) from the previous 151mm bolt circle (44 tooth minimum)."
>
> *http://www.campyonly.com/history/timeline.html
>
> Cheers,
>
> Carl Fogel

CDA was 135mm BCD, hence 39t min.

dustoyevsky@mac.com

On May 29, 4:12*am, "* * Chas" wrote:

[41 in a square, Crotchety Leon crank DOM?]

email, ask?

tech-info@campagnolo.com

(STM there was a good list out there, I didn't find it either)
(Will look for link in link list, later)

--D-y

* * Chas

"A Muzi" <am@yellowjersey.org> wrote in message
news:46e73$483e32d5$20734@news.teranews.com...
> >> "* * Chas" <verktygj...@aol.spamski.com> wrote:
> >>> I picked up a Campy Croce D'Aune gruppo last week. The date code on
the
> >>> crank arms is 41 in a square. I haven't been able to find what year
that
> >>> translates to.
>
> > carlfo...@comcast.net wrote:
> >> Could the "41" be just the minimum number of teeth?
> >> "1967: The Record crankset is changed to a 144mm bolt circle (41
tooth
> >> minimum) from the previous 151mm bolt circle (44 tooth minimum)."
> >> http://www.campyonly.com/history/timeline.html
>
> Hank wrote:
> > That's unlikely, since the CDA crank had a 135mm BCD, like all Campy
> > full-sized doubles from C-Record onwards. Rings were available as
> > small as 39t (didn't TA make a 38?).
>
> 38t SR-Sakae and later TA for the 130 format, never saw one for 135mm
>
> I never noticed any pattern to Campagnolo crank markings of the era so I
> can't help with the OP's query.
> --
> Andrew Muzi
> <www.yellowjersey.org/>
> Open every day since 1 April, 1971
> ** Posted from http://www.teranews.com **

FSA also has 38T 130mm chainrings.

Chas.

Qui si parla Campagnolo-www.vecchios.com

On May 28, 10:38*pm, A Muzi <a...@yellowjersey.org> wrote:
> >> *"* * Chas" <verktygj...@aol.spamski.com> wrote:
> >>> I picked up a Campy Croce D'Aune gruppo last week. The date code on the
> >>> crank arms is 41 in a square. I haven't been able to find what year that
> >>> translates to.
> > *carlfo...@comcast.net wrote:
> >> Could the "41" be just the minimum number of teeth?
> >> "1967: The Record crankset is changed to a 144mm bolt circle (41 tooth
> >> minimum) from the previous 151mm bolt circle (44 tooth minimum)."
> >> *http://www.campyonly.com/history/timeline.html
> Hank wrote:
> > That's unlikely, since the CDA crank had a 135mm BCD, like all Campy
> > full-sized doubles from C-Record onwards. Rings were available as
> > small as 39t (didn't TA make a 38?).
>
> 38t SR-Sakae and later TA for the 130 format, never saw one for 135mm
>
> I never noticed any pattern to Campagnolo crank markings of the era so I
> can't help with the OP's query.
> --
> Andrew Muzi
> * <www.yellowjersey.org/>
> * Open every day since 1 April, 1971
> ** Posted fromhttp://www.teranews.com**

I used to have a chart that talked about what it all meant. Shape was
the month, number was the year or something.

carlfogel@comcast.net

On Fri, 30 May 2008 05:22:54 -0700 (PDT), "Qui si parla
Campagnolo-www.vecchios.com" <peter@vecchios.com> wrote:

>On May 28, 10:38*pm, A Muzi <a...@yellowjersey.org> wrote:
>> >> *"* * Chas" <verktygj...@aol.spamski.com> wrote:
>> >>> I picked up a Campy Croce D'Aune gruppo last week. The date code on the
>> >>> crank arms is 41 in a square. I haven't been able to find what year that
>> >>> translates to.
>> > *carlfo...@comcast.net wrote:
>> >> Could the "41" be just the minimum number of teeth?
>> >> "1967: The Record crankset is changed to a 144mm bolt circle (41 tooth
>> >> minimum) from the previous 151mm bolt circle (44 tooth minimum)."
>> >> *http://www.campyonly.com/history/timeline.html
>> Hank wrote:
>> > That's unlikely, since the CDA crank had a 135mm BCD, like all Campy
>> > full-sized doubles from C-Record onwards. Rings were available as
>> > small as 39t (didn't TA make a 38?).
>>
>> 38t SR-Sakae and later TA for the 130 format, never saw one for 135mm
>>
>> I never noticed any pattern to Campagnolo crank markings of the era so I
>> can't help with the OP's query.
>> --
>> Andrew Muzi
>> * <www.yellowjersey.org/>
>> * Open every day since 1 April, 1971
>> ** Posted fromhttp://www.teranews.com**
>
>I used to have a chart that talked about what it all meant. Shape was
>the month, number was the year or something.

Dear Peter,

It turns out to be a nightmare date code:

"Also, the crank arms can have a code consisting of a diamond
(1970's), circle (1980's), square (late non-fluted SR), etc. with a
number in the center possibly denoting the last digit of the year of
manufacture."
http://www.campyonly.com/tipstrivia.html

"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)."
http://www.velo-retro.com/tline.html

Where "41" in a square on a Croce D'Aune crank fits in this dating
scheme is a mystery covered by "possibly" and "plus others".

Cheers,

Carl Fogel