Re: [CR] 753 vs 531 (Important!)

(Example: Framebuilders:Doug Fattic)

Date: Sun, 3 Jul 2005 12:53:23 -0700
From: "Kurt Sperry" <haxixe@gmail.com>
To: "gpvb1@comcast.net" <gpvb1@comcast.net>
Subject: Re: [CR] 753 vs 531 (Important!)
In-Reply-To: <070320051627.8663.42C811E800088512000021D72207001641CE0D909F09@comcast.net>
References: <070320051627.8663.42C811E800088512000021D72207001641CE0D909F09@comcast.net>
cc: classicrendezvous@bikelist.org

>
> Folks, it seems that something needs clarifying here. 531 DB tubing was
> available in Imperial and Metric diameters. This is why a standard-gauge
> French 531 DB frame takes a 26.6 diameter seat post, whereas an English
> one requires a 27.2 post. The wall thicknesses are the same, but the O.D.
> of the tube is 0.6 mm different (28.0 vs 28.6).

Question: What sort of 531 takes a 26.4mm post? I've got apparently Frenc h made 531 Bartali frame with a 26.4 and this seems by no means an uncommon

post diameter for French 531 bikes. Kurt Sperry Bellingham WA

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