Campy CDA crank date code

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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.

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.)
>

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.

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

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.

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

>> "* * 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 **

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

"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.

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.

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

"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.

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.

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

>>>>> "* * 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?).

>> A Muzi <a...@yellowjersey.org> wrote:
>>> 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.

> "Qui si parla Campagnolo-www.vecchios.com" <peter@vecchios.com> wrote:
>> 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 wrote:
> 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".


Just as I suspected, some Italian toolmaker dropped random numbers in
the dies every once and a while.
--
Andrew Muzi
<www.yellowjersey.org/>
Open every day since 1 April, 1971
** Posted from http://www.teranews.com **

<carlfogel@comcast.net> wrote in message
news:m4h0445p2g6t4722gj1kidasnoe00at039@4ax.com...
> 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

Carl,

To add to the mystery, I have a documented 1994 C-Record crankset with 94
in a square.

The CDA gruppo is on a 1985 Eddy Merckx bike almost the same as this one
except for saddle, rims and color - mine is all red.

http://velospace.org/node/1903

CDA from what I can tell didn't come out until 1988. I'm guessing that the
frame hung in a bike shop until 1988 or later and then was assembled with
the CDA gruppo.

Chas.

<dustoyevsky@mac.com> wrote in message
news:1a623dd4-a33a-4a35-abf5-8aa9045d968d@25g2000hsx.googlegroups.com...
On May 30, 1:43 pm, A Muzi <a...@yellowjersey.org> wrote:

> Just as I suspected, some Italian toolmaker dropped random numbers in
> the dies every once and a while.

It's a way of attaining a measure of short-term immortality. --D-y

Back in the mid 70s were building up a pro bike frame with a full Campy NR
gruppo. One of our mechanics was having problems installing the left
pedal. Upon closer examination we discovered that the pedal had a double
lead left hand thread. Someone had to have intentionally threaded the
pedal with a double lead thread.

Chas./