Campy CDA crank date code

* * Chas said:

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.)

Quoted message said:

On May 28, 7:42 am, "Guy Anderson, Sr." <[email hidden]>

Quoted message said:

On Wed, 28 May 2008 01:02:12 -0700, "* * Chas"

Quoted message said:

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.

Quoted message said:

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.

* * Chas said:

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 <[email hidden]>

Quoted message said:

On May 28, 7:42 am, "Guy Anderson, Sr." <[email hidden]>

Quoted message said:

On Wed, 28 May 2008 01:02:12 -0700, "* * Chas"

Quoted message said:

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.

Quoted message said:

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.

Quoted message said:

* * Chas said:

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.

Quoted message said:

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

Quoted message said:

Quoted message said:

* * Chas said:

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.

Quoted message said:

Quoted message said:

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 said:

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." <[email hidden]>

Quoted message said:

On Wed, 28 May 2008 01:02:12 -0700, "* * Chas"

Quoted message said:

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.

Quoted message said:

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" <[email hidden]> wrote in message
news:[email hidden]...

Quoted message said:

Quoted message said:

* * Chas said:

I picked up a Campy Croce D'Aune gruppo last week. The date code on

the

Quoted message said:

Quoted message said:

Quoted message said:

crank arms is 41 in a square. I haven't been able to find what year

that

Quoted message said:

Quoted message said:

Quoted message said:

translates to.

Quoted message said:

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.

Quoted message said:

* * Chas said:

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.

Quoted message said:

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?

[email hidden]

(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" <[email hidden]> wrote in message
news:[email hidden]...

Quoted message said:

Quoted message said:

Quoted message said:

"* * Chas" <[email hidden]> wrote:
> I picked up a Campy Croce D'Aune gruppo last week. The date code on

the

Quoted message said:

Quoted message said:

Quoted message said:

> crank arms is 41 in a square. I haven't been able to find what year

that

Quoted message said:

Quoted message said:

Quoted message said:

> translates to.

Quoted message said:

Quoted message said:

Could the "41" be just the minimum number of teeth?
"1967: The Record crankset is changed to a 144mm bolt circle (41

tooth

Quoted message said:

Quoted message said:

Quoted message said:

minimum) from the previous 151mm bolt circle (44 tooth minimum)."
http://www.campyonly.com/history/timeline.html

Hank said:

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.

A Muzi said:

Quoted message said:

Quoted message said:

"* * Chas" <[email hidden]> 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.

Quoted message said:

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 said:

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 said:

A Muzi said:

Quoted message said:

>  "* * Chas" <[email hidden]> 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.
 [email hidden] 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 said:

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

Quoted message said:

Quoted message said:

Quoted message said:

>> "* * Chas" <[email hidden]> 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.

Quoted message said:

Quoted message said:

Quoted message said:

> [email hidden] 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

Quoted message said:

Quoted message said:

Quoted message said:

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?).

Quoted message said:

Quoted message said:

A Muzi said:

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.

Quoted message said:

Qui si parla Campagnolo-www.vecchios.com said:

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

Quoted message said:

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 **

<[email hidden]> wrote in message
news:[email hidden]...

Quoted message said:

On Fri, 30 May 2008 05:22:54 -0700 (PDT), "Qui si parla

Campagnolo-www.vecchios.com said:

A Muzi said:

>> "* * Chas" <[email hidden]> wrote:
>>> I picked up a Campy Croce D'Aune gruppo last week. The date code

on the

Quoted message said:

Quoted message said:

Quoted message said:

>>> crank arms is 41 in a square. I haven't been able to find what

year that

Quoted message said:

Quoted message said:

Quoted message said:

>>> translates to.
> [email hidden] wrote:
>> Could the "41" be just the minimum number of teeth?
>> "1967: The Record crankset is changed to a 144mm bolt circle (41

tooth

Quoted message said:

Quoted message said:

Quoted message said:

>> 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

Quoted message said:

Quoted message said:

Quoted message said:

> 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

Quoted message said:

Quoted message said:

Quoted message said:

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.

<[email hidden]> wrote in message
news:[email hidden]...

A Muzi said:

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./