Re: [CR] Sizing question for tubular rims

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From: <>
Date: Sun, 24 May 2009 13:21:33 -0400
To: <>
Subject: Re: [CR] Sizing question for tubular rims

Hey Tom, Hope all is well in health and family.

Tubulars for a standard sized road bike are simply 700c. I think I read in the past, here on the CR list, that the 28" denotation was something that came around in Europe in answer to our US 27" sizing parameters. Don't really know if they are bigger, smaller, or what ... because all I've ever needed to know is that "standard" tubular tires fit standard 700c tubular rims. All my tubular rims are 700c, as normal, and I've never failed in applying any tire to any of them, in terms of size and fit. You can acquire smaller tubular tires for smaller rims, but the difference will be strikingly obvious next to a 700c.

Ciao, Mark Agree - riding his 28" or 700c tubular tires on the same bike - Southfield MI USA ~ ~ ~

Date: Sun, 24 May 2009 12:27:36 -0400 From: Tom Sanders <> Subject: [CR] Sizing question for tubular rims To: _Classicrendezvous@bikelist.org_ (

I recently got a set of gorgeous wheels with Tipo HF hubs and NISI tubular rims. There is no indicator at all of sizing. I measured them and they actually seen a hair larger than the 27" wheels on my Paramounts. They came off a Raleigh, so the person who sold them tells me. I believe I have heard that all tubular are 28", but I have also heard that they are all 27". I never gave it much though before, they are spaced at 120 so this gives an indication of the era. Could these be 28" rims? Measuring seems a bit iffy because of the different height of rim walls, does one measure to the inside edge of the rim? If so to the outboard edge? Some are concave, of course which seems to muddy the water even more.

Sounds pretty basic, but I don't think I've ever encountered such a thing before. I'm also thinking that Raleighs of that period used inches, but the rest of Europe was using 700c by then, right?

Tom Sanders

Lansing, MI USA

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