Re: [CR] French thread crankset

(Example: Production Builders:LeJeune)

Date: Sun, 11 Apr 2010 12:04:25 -0700 (PDT)
From: Jerome & Elizabeth Moos <jerrymoos@sbcglobal.net>
To: classicrendezvous@bikelist.org, Tom Hayes <hayesbikes@gmail.com>
In-Reply-To: <p2n779093151004051222mfa6bdf15z6d64c04f62b4f50e@mail.gmail.com>
Subject: Re: [CR] French thread crankset


14 mm and 9/16" are VERY close together.  As I've related before, the variation in individual Lyotard pedals, for example, can be greater than the nominal difference.  My 1973 Lejeune came with French Lyotard pedals installed in English threaded Stronglight 93 arms, and they worked fine for thousands of miles until I upgarded the pedals.  One can fairly easily tap a French arm to English simply by forcing in English threaded pedals.  I suspect this has been done thousands of times on old bike by teenage shop employees who never heard of French thread.

Regards,

Jerry Moos
Tuscaloosa, Alabama, USA


--- On Mon, 4/5/10, Tom Hayes wrote:


From: Tom Hayes <hayesbikes@gmail.com> Subject: [CR] French thread crankset To: classicrendezvous@bikelist.org Date: Monday, April 5, 2010, 2:22 PM

I have a Stronglight 93 crankset marked 14 x 125.  When I got it, it had*clearly marked 9/16 x 20 Campagnolo pedals.  They tighten onto the crank * smoothly, evenly, and tightly.  The pedal holes do not appear to have been changed--retapped; or if they were, no indication of such tapping is in evidence.

I am trying to play possibilities on this: the crank arms are mislabeled, the pedals are mislabeled (though I tried others on this crank), excellent job of retapping, or my bad eyesight (I am leaning toward this).  Any experience from other members?

Thank you.

Cheers.

Tom Hayes
Chagrin Falls, Ohio USA