RE: [CR]Vintage headset questions

(Example: Framebuilding:Technology)

From: "Ken Freeeman" <freesound@comcast.net>
To: "'David Benson'" <bensondoc@yahoo.com.au>, <Classicrendezvous@bikelist.org>
Subject: RE: [CR]Vintage headset questions
Date: Fri, 4 Mar 2005 21:06:14 -0500
In-Reply-To: <20050304231235.78050.qmail@web42007.mail.yahoo.com>
Thread-Index: AcUhD6Zo7DjbDNAIS8KxD0GMZsiTVwAF6JeA


I've noticed that the numbers go all over the place. I really did read 41.2 for the Chorus in the Barnett manual, but I've previously heard that new and recent Campy road headsets will fit as replacements for NRs and SRs, of course this is compatible with your number. Is this variation because of lack of measurement standards, or do the parts vary from year to year, or ??

Thanks, Dave, I'll have to remember to hand fit carefully when I do try some parts, and to check the HS parts against the steer tube/head tube combination.

Ken Freeman Ann Arbor, MI

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From: David Benson [mailto:bensondoc@yahoo.com.au] Sent: Friday, March 04, 2005 6:13 PM To: Ken Freeeman; Classicrendezvous@bikelist.org Subject: RE: [CR]Vintage headset questions

Fer what its worth, the current Chorus threaded hhaedset has 36.5mm stack height. DB Ak, NZ

Ken Freeeman <freesound@comcast.net> wrote:

Thank you!

So if an A-9 is 40 mm (Barnett's says 40.7) and a Chorus is 41.2 (Barnett again) perhaps a Chorus would be a good choice. Is the maximum 1-to-2 mm difference if I use a Chorus acceptable, or do I need a closer match to the original size? Clearly I can use a shorter headset with added spacers.

Ken Freeman Ann Arbor, MI

-----Original Message----- From: John Thompson [mailto:JohnThompson@new.rr.com] Sent: Friday, March 04, 2005 8:29 AM To: Ken Freeeman Cc: Classicrendezvous@bikelist.org Subject: Re: [CR]Vintage headset questions

Ken Freeeman wrote:
> What are the differences in stack height, design and quality between
> Campy Record, Nuovo Record, and Gran Sport headsets?
>
> Anyone know the stack height for a Stronglight B3 Delrin headset, OEM
> on some early '80s Treks? (I know, the pertinence of this one is
> debatable) I have to replace one.

It's the same as the A-9 alloy version: 40mm.
> Is there a Stronglight that I should look for as a replacement, but
> made of metal? It doesn't seem that all Stronglights had the same stack height.

An A-9 ought to work fine.

--

-John Thompson (john@os2.dhs.org) Appleton WI USA

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