Re: [CR] 531 decals-other languages

(Example: Framebuilding:Brazing Technique)

In-Reply-To: <BLU0-SMTP63851789EC2648AC0F306C9C9C0@phx.gbl>
Date: Wed, 25 Nov 2009 08:05:43 -0800
To: <>, <>
From: "Jan Heine" <>
Subject: Re: [CR] 531 decals-other languages

At 2:29 AM -0800 11/25/09, R.S. Broderick wrote:
>However, Reynolds 5/10 mm tubing was introduced in 1975 as 531 SL (...i.e.
>Special Lightweight) coincident to release of 753 (...which does happen to
>measure 3/10 mm at its thinnest point).

While the "SL" name probably does date from 1975, the lightweight 531 tubing is much older. I have a spec sheet for a 1947 Alex Singer that lists "5/10 mm" and the bike carries a Reynolds tubing sticker (see "Golden Age of Handbuilt Bicycles" p. 55).

The "3/10 mm" tubing was already available in the 1930s, as it was used on many bikes in the French technical trials.

Was the lighter-gauge 531 only available in France? (My sources in France all claim that the "3/10 mm" 531 was a French exclusive, but nobody ever told me that about the "5/10 mm.")

Looking through the V-CC's reprints of builders' catalogues ("Lightweight Catalogues, Vols. 1-3), I only see references to "Reynolds 531" in the descriptions, but no other distinctions.

Considering the many different and even custom tubes (Cantiflex etc.) made by Reynolds for British makers, I would be surprised if they only offered "7/10 mm" tubing in their catalogues.

I am sure some of our British members know the answer.

Jan Heine
Bicycle Quarterly
2116 Western Ave.
Seattle WA 98121