Re: [CR]Silver-filleted 753 frames

(Example: Racing)

From: "henox" <henox@icycle.net>
To: <john@os2.dhs.org>, <Classicrendezvous@bikelist.org>
References: <000e01c5f928$d1e82ff0$b9aa4154@norris> <4393C69F.2080004@new.rr.com>
Subject: Re: [CR]Silver-filleted 753 frames
Date: Tue, 6 Dec 2005 09:35:25 -0800


Subject: Re: [CR]Silver-filleted 753 frames


> Norris Lockley wrote:
> > Peugeot used its internal brazing methods to produce hundreds of
> > thousands of cheap to mid-range frames and I can't recall any breakages
> > in the frames I sold.

And John replied:
> Working with the USA importer of Gitane in the early 80s, I do recall a
> few Gitanes of similar construction breaking, especially at the head
> tube/down tube joint. On the other hand, my own minimal-fillet frame >has lasted at least 12 years of regular use:

I remember reading a lengthy article in "Le Cycle" years ago about Peugeot's then new "inexternal" manufacturing technique (filler metal rings placed inside at the tube jonts). The article mentioned the destructive testing carried out on a sample frames out of every so many frames. This in addition to cutting frames apart to make sure the right amount of filler was used and that it flowed properly to form little fillets all the way around each joint, inside and out. When the process was used by ProCycle in Canada, they may not have had the same process control or QC testing as at the French factory.

Hugh Enox