Re: [CR]tubular rim size question

(Example: Events:Cirque du Cyclisme)

Date: Sun, 2 Dec 2007 19:39:47 -0500
From: "Tim Victor" <timvictor@gmail.com>
To: "Classic Rendezvous" <classicrendezvous@bikelist.org>
Subject: Re: [CR]tubular rim size question
In-Reply-To: <779093150712021450g1b6f16e7w967546066d73eec7@mail.gmail.com>
References: <779093150712021450g1b6f16e7w967546066d73eec7@mail.gmail.com>


On Dec 2, 2007 5:50 PM, Tom Hayes wrote:
> I have a Campagnolo Sigma tubular rim that I intend to put on Ebay. I do
> not, however, know its size. It measures ~560 diameter from inside to
> inside and ~585 mm from the outside lip to the outisde lip. Would this be
> called a 24 inch wheel? Or does it have a "standard" tubluar tire size?

That sure sounds like a 650c to me. Bead seat diameter (although properly speaking there's no bead) is 571mm, which is right in that range. Which is to say that it's 22 1/2" to the nearest millimeter. (Wouldn't it make at least a bit more sense if we used the original English sizes instead of pretending to use metric units? It works fine for car wheels.)

That's a common size for smaller sewups, popular for triathletes and junior riders. And it's called a 26", one of the many sizes so called.
> It is 28 hole.

Any good explanation for why 28-hole rims are so frequently offered for sale, but 28-hole hubs so rarely?
> Thank you for the help. And incidently, if anyone wants it for $15 plus
> mailing to you, that would work too. It is NOS.
>
> I can send pictures.

I'm good, thanks. :-)
>
> Cheers.
>
> --
> Tom Hayes
> Chagrin Falls, Ohio USA

Peace,

Tim Victor
Greensboro, NC USA