Re: [CR]Interesting frame on French ebay

(Example: Framebuilders:Mario Confente)

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Date: Sun, 16 Sep 2007 09:46:33 -0700
To: Fred Rednor <>, CR <>
From: "Jan Heine" <>
Subject: Re: [CR]Interesting frame on French ebay

At 9:44 PM -0700 9/15/07, Fred Rednor wrote:
> >
>But what I really find intriguing is the bottom bracket. What
>sort of crankset was supposed to be used with it? Or is that
>simply a very lightweight spindle which would take the usual
>sort of Stronglight or Nervar crank arm?
> Fred Rednor - Arlignton, Virginia (USA)

Indeed, a very lightweight spindle for standard cottered cranks. It's an interesting design, as the drilled hole in the spindle is very large, and then the taper flats are formed so that they bulge into the hole. You can see that in one of the detail shots.

I have seen a few of those, but never on a bike. I guess if you were into superlight in the 1940s, you used aluminum cotterless cranks...

Jan Heine
Bicycle Quarterly
140 Lakeside Ave #C
Seattle WA 98122