Campagnolo allan keys?

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bigjim
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Campagnolo allan keys?

Postby bigjim » 18 Jul 2020, 12:14pm

I've got a bike with an old Campag 1" stem. The centre bolt has the usual Allen key fit. None of my Allen keys will fit it and the largest in my set is a 6 which is too small. Before I go buying one I need to make sure it is the right size. 7,8 9? does anybody know the correct size?
Cheers.

Brucey
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Re: Campagnolo allan keys?

Postby Brucey » 18 Jul 2020, 12:39pm

I think you may need a 7mm key. IIRC this was included in one of the most popular campag tools BITD.

You should be able to tell the difference between 7 and 8mm even using something as simple as a ruler.

If you can post a photo of the part someone may recognise it exactly.

cheers
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iandusud
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Re: Campagnolo allan keys?

Postby iandusud » 18 Jul 2020, 12:47pm

Yes definitely 7mm

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bigjim
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Re: Campagnolo allan keys?

Postby bigjim » 18 Jul 2020, 1:37pm

Thanks guys.

profpointy
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Re: Campagnolo allan keys?

Postby profpointy » 18 Jul 2020, 6:51pm

I seem to recall that 7mm is an unusual size so
may not be included in sets as a rule. Doubtless easy enough to get one

tatanab
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Re: Campagnolo allan keys?

Postby tatanab » 18 Jul 2020, 7:02pm

Brucey wrote:If you can post a photo of the part someone may recognise it exactly.

I'd be interested in a picture because i've never seen a Campag handlebar stem and can find no information on places like Velobase. The only one I can think of is part of the 50th anniversary groupset, but that was a pantographed Cinelli.

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Mick F
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Re: Campagnolo allan keys?

Postby Mick F » 18 Jul 2020, 7:18pm

My Cinelli 1R stem is 6mm bolt head.
I doubt it's Cinelli therefore.
Mick F. Cornwall

Samuel D
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Re: Campagnolo allan keys?

Postby Samuel D » 18 Jul 2020, 10:05pm

I have come across French stems (and seatpost clamps) that take a 7 mm Allen key. God only knows why 6 mm or 8 mm wasn’t good enough for their designers.

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speedsixdave
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Re: Campagnolo allan keys?

Postby speedsixdave » 19 Jul 2020, 9:48am

I think the self-extracting crank bolts on classic C-Record chainsets were a 7mm allen key too. Although I'd have to check.
Big wheels good, small wheels better.
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Brucey
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Re: Campagnolo allan keys?

Postby Brucey » 19 Jul 2020, 10:15am

I have a hazy memory that BITD you could fit a classic cinelli stem (eg a 1A model) with an aftermarket lightweight ergal expander bolt assembly, and that this may take a 7mm allen key instead of the usual 6mm one. For example this

http://velobase.com/ViewComponent.aspx?ID=67088e94-e1ac-441b-9c72-b8fffedfc375

might be one such? Could it be one of those?

cheers
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col2019
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Re: Campagnolo allan keys?

Postby col2019 » 19 Jul 2020, 11:09am

i got a 7mm from cromwell tools

Des49
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Re: Campagnolo allan keys?

Postby Des49 » 19 Jul 2020, 1:10pm

speedsixdave wrote:I think the self-extracting crank bolts on classic C-Record chainsets were a 7mm allen key too. Although I'd have to check.


Yes, we have a C Record and Chorus chainsets that need a 7mm key. I purchased a set of Teng allen keys that have a 7mm.

Don't even mention the 3 1/2 mm key needed for Campag Delta brakes!

KM2
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Re: Campagnolo allan keys?

Postby KM2 » 19 Jul 2020, 3:17pm

Original Cinelli alloy stems used to be a 7 mm.

Valbrona
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Re: Campagnolo allan keys?

Postby Valbrona » 19 Jul 2020, 4:27pm

Yawn. Yawn. Yawn.

I can't believe this thread has got to 12 posts.

What kind of bike owner doesn't go out and buy a set of hex keys?
I should coco.

fastpedaller
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Re: Campagnolo allan keys?

Postby fastpedaller » 19 Jul 2020, 4:30pm

Valbrona wrote:Yawn. Yawn. Yawn.

I can't believe this thread has got to 12 posts.

What kind of bike owner doesn't go out and buy a set of hex keys?


But what set of Allen keys has a 7mm included? :(