I strongly suspect that the "A" and "D" on the Stronglight 49A and 49D have exactly the same significance as on the Lyotard 45A and 45D pedals. The Lyotard 45A has a steel cage - "Acier" is French for "Steel". The 45D has a dural (alloy) cage - "Dural" is French for "Dural". I have several allloy Mod 49 cranks, but no steel ones. However, if you have a 49A crank, I suspect a magnet will stick to it rather well.
Regards,
Jerry Moos
Houston, TX
> I've had a few of the very early 49 cranks. I have
> one from about 1950 on my touring bike. I've noticed
> the following differences:
> 1.Engraved is only, "49 170" on the inside of my
> earliest crank. I've also seen 49 A and 49 D on later
> cranks, but I don't remember exact years. And I'm not
> sure what they represent. Unless it is the taper, see
> difference #2>>>
> 2.The taper is different from later 49s. I tried
> putting a 1970s Mod 49 on a 1950 bike and the chain
> line was so bad that the chain fell.
> 3.On the front side, it only says, "Stronglight
> Depose." The word "MARQUEE" is omitted. I think they
> added Marquee in mid to late 50s.
> 4.Earliest 49s used pin-hole dust caps, while later
> models used screw driver slotted caps. I think this
> changed in the early 50s because most people had no
> pin-tools.
> 5. Chainrings were more art decco looking and with
> massive cut-outs.
>
> Happy Bastille Day
> --- nelson miller <nelsmiller@msn.com> wrote:
> >
> > Group, whoever answers the question below, maybe you
> > can tell me about an obviously "49D" crankset that I
> > have that is marked with a "5" on one side of the
> > back, and a "B" on the other, instead of the usual
> > "49D"? Thanks --- Nelson Miller--- Seattle
> >
> >
> >
> >
> >
> >
> >
> > >From: NortonMarg@aol.com
> >
> > >To: classicrendezvous@bikelist.org
> >
> > >Subject: Re: [CR]Stronglight 49A vs. 49D cranks
> >
> > >Date: Sun, 14 Jul 2002 17:45:09 EDT
> >
> > >
> >
> > >I recently had a reference to a Stronglight 49A.
> > Was there such a beast, and
> >
> > >how is it different from the D?
> >
> > >Stevan Thomas
> >
> > >Alameda, CA
> >
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