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From: bp@www.zefox.net
Newsgroups: rec.bicycles.tech
Subject: Re: wtf chain ring bolts
Date: Thu, 6 Mar 2025 16:54:57 -0000 (UTC)
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AMuzi <am@yellowjersey.org> wrote:
> 
> As an aside, tubulars, the oldest standard which size has 
> not changed since the 1890s, are variously labeled "700C" 
> (they are not; the 700 type C was developed later to 
> exchange wheels with the same brake height as a tubular) or 
> "27 inch" (they are not; 27 inch systems are larger) or "28 
> inch" (again, 28s are all much larger) even down to today by 
> various tubular makers in some weird vestigial rite.  The 
> net effect is confusion to riders and is not at all helpful.

As a matter of curiosity, what is that standard size called,
and how is it measured? 

Thanks for writing,

bob prohaska