~1985 Campy Crank arm bolt allen size?



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Gman

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I have an old Panasonic road bike with 170mm Campy cranks on it. They appear to have an allen bolt,
although it is a different size than is on my modern FS mtn bike.

I have been told it's likely a 10mm.

Anyone have old Campy cranks with 10mm bolts?

I guess I'll run down to the LBS with it...

G
 
M

Mike S.

Guest
"Gman" <[email protected]> wrote in message
news:[email protected]...
> I have an old Panasonic road bike with 170mm Campy cranks on it. They appear to have an allen
> bolt, although it is a different size than is on my modern FS mtn bike.
>
> I have been told it's likely a 10mm.
>
> Anyone have old Campy cranks with 10mm bolts?
>
> I guess I'll run down to the LBS with it...
>
> G

I thought Campy had 7mm bolts.

Anyone know differently?

Mike
 
P

Paul Southworth

Guest
In article <[email protected]>, Mike S. <[email protected]> wrote:
>
>"Gman" <[email protected]> wrote in message
>news:[email protected]...
>> I have an old Panasonic road bike with 170mm Campy cranks on it. They appear to have an allen
>> bolt, although it is a different size than is on my modern FS mtn bike.
>>
>> I have been told it's likely a 10mm.
>>
>> Anyone have old Campy cranks with 10mm bolts?
>>
>> I guess I'll run down to the LBS with it...
>>
>> G
>
>I thought Campy had 7mm bolts.
>
>Anyone know differently?

Could also be a non-Campy allen-head crank bolt or self-extracting gizmo. They were sold in the
aftermarket during the time that Campy used 15mm hex-head bolts. There were several types & bolt
formats used in these products. Some even used 6mm allen head, which is just way too small.

--Paul
 
G

Gman

Guest
On Tue, 25 Mar 2003 11:06:58 -0800, Mike S. <[email protected]> wrote:
>
> "Gman" <[email protected]> wrote in message
> news:[email protected]...
>> I have an old Panasonic road bike with 170mm Campy cranks on it. They appear to have an allen
>> bolt, although it is a different size than is on my modern FS mtn bike.
>>
>> I have been told it's likely a 10mm.
>>
>> Anyone have old Campy cranks with 10mm bolts?
>>
>> I guess I'll run down to the LBS with it...
>>
>> G
>
> I thought Campy had 7mm bolts.
>
> Anyone know differently?
>
> Mike

I'm pretty sure it's bigger than 7mm. My FS mtn bike crank bolts are definitely bigger than 7mm and
that wrench is too small for the Campys.

...to the LBS w/ it tomorrow.

G
 
D

David L. Johnso

Guest
On Tue, 25 Mar 2003 14:06:58 -0500, Mike S. wrote:

>> I have an old Panasonic road bike with 170mm Campy cranks on it. They appear to have an allen
>> bolt, although it is a different size than is on my modern FS mtn bike.
>>
>> I have been told it's likely a 10mm.

> I thought Campy had 7mm bolts.

I was gonna say 7 as well, and that is one size most allen wrench sets do not have. Be careful,
also, since the auto-extractor rings, the things that look like the dust caps, are left-hand thread.
They also tend to wear. I had one that was so bad off it would not pull the crank any more.

--

David L. Johnson

__o | A mathematician is a machine for turning coffee into theorems. _`\(,_ | -- Paul Erdos
(_)/ (_) |
 
M

Mark Hickey

Guest
Gman <[email protected]> wrote:

>I have an old Panasonic road bike with 170mm Campy cranks on it. They appear to have an allen bolt,
>although it is a different size than is on my modern FS mtn bike.
>
>I have been told it's likely a 10mm.
>
>Anyone have old Campy cranks with 10mm bolts?
>
>I guess I'll run down to the LBS with it...

I think they were 8mm in 1995 (and still are).

Mark Hickey Habanero Cycles http://www.habcycles.com Home of the $695 ti frame
 
A

A Muzi

Guest
"Gman" <[email protected]> wrote in message
news:[email protected]...
> I have an old Panasonic road bike with 170mm Campy cranks on it. They appear to have an allen
> bolt, although it is a different size than is on my modern FS mtn bike.
>
> I have been told it's likely a 10mm.
>
> Anyone have old Campy cranks with 10mm bolts?

The bolt is m8x1. The allen head was 7mm on the older bolts, 8mm now

--
Andrew Muzi http://www.yellowjersey.org Open every day since 1 April 1971
 
Q

Qui Si Parla Ca

Guest
glaprade-<< I have an old Panasonic road bike with 170mm Campy cranks on it.

7mm and self extractor on Record/CDA/Chorus/Victory-others..

Peter Chisholm Vecchio's Bicicletteria 1833 Pearl St. Boulder, CO, 80302
(303)440-3535 http://www.vecchios.com "Ruote convenzionali costruite eccezionalmente bene"
 
Q

Qui Si Parla Ca

Guest
mikeshaw-<< I thought Campy had 7mm bolts.

Anyone know differently?

This era had 7mm self extractores, then went to a 8mm allen about 1994 or so-or a 15mm bolt-

Peter Chisholm Vecchio's Bicicletteria 1833 Pearl St. Boulder, CO, 80302
(303)440-3535 http://www.vecchios.com "Ruote convenzionali costruite eccezionalmente bene"
 
G

Gman

Guest
On 26 Mar 2003 14:03:50 GMT, Qui si parla Campagnolo <[email protected]> wrote:
> glaprade-<< I have an old Panasonic road bike with 170mm Campy cranks on it.
>
> 7mm and self extractor on Record/CDA/Chorus/Victory-others..
>

You guys were absolutely correct. 7mm it is! Got a wrench now.

G
 
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