Re: [CR]relacing used hubs

(Example: Events:BVVW)

Date: Mon, 05 Feb 2007 11:24:04 -0500
From: "Norm and Val Lafleur" <nvlafleur@verizon.net>
Subject: Re: [CR]relacing used hubs
To: "Doug Van Cleve" <dvancleve@gmail.com>, "Howard Darr" <hdarr@localnet.com>
References: <OFAF3F215E.6FB19D0E-ON85257279.004A8BEE-85257279.004C226C@gm.com> <001201c7493d$8698c4e0$2e239942@D1S2F761> <954702dd0702050815x3c728560i16301d4da28b01d@mail.gmail.com>
reply-type=response
cc: classicrendezvous@bikelist.org

Here is a copy of my reply to Marcus. as stated in the note, it is Campy's position that a hub should always be relaced as it was originally.

Norm Lafleur Ashfield, Ma.

Marcus, about 25 years ago when I first started building wheels I relaced a Nuovo Record hub and later that season I noticed that the flange was cracked. When I returned it to Campy they stated that the warranty was invalid because the hub had been laced in two different directions and that this was a known failure mode. It is safest to lace a hub exactly the same each time a wheel is rebuilt. I have relaced hubs many times without a problem by staying with the original direction. That said it is possible to change spoke heads from one side of the flange to the other as long as the spokes leave the flange in the original direction, i.e.pulling spokes remain pulling spokes. Also since a hub flange is a highly stressed component I do not recommend removing any material by sanding down ridges or other means.


----- Original Message -----
From: Doug Van Cleve
To: Howard Darr
Cc: marcus.e.helman@gm.com
Sent: Monday, February 05, 2007 11:15 AM
Subject: Re: [CR]relacing used hubs



> Steven would know better than me, but I would say changing the
> direction of force on the spoke hole increases the odds of cracking.
> Certainly it has been done many times and not every hub failed. I
> believe it is okay to go from heads in to heads out with the spoke
> still pulling the same direction, even endorsed by Campagnolo. When I
> first started wheel building I would always relace wheels the way I
> prefer it. Now if it is a used hub I lace it the same way it was
> originally laced. From what I have read none of the heads in/out,
> pulling/pushing stuff really matters to wheel durability anyway.
>
> Doug Van Cleve
> Chandler, AZ USA
>
>
> On 2/5/07, Howard Darr <hdarr@localnet.com> wrote:
>> I would be interested in an answer. The person who taught me to build
>> wheels thought that once a hub was marked it had to be built that way.
>> If
>> not the flange large or small would have a high probability of cracking.
>> Using a file would not help.
>>
>> Urban legend or true. Enquiring minds would like to know.
>>
>> Howard Darr
>> Clymer 5 below here PA