Hilary, was the 49D designation, at least, first adopted in that year? Also, granted that the mod 93 wasn't primarily a touring crank, but didn't the Mod 99, with a much smaller bolt circle than the mod 93, and often configured as a triple, displace the 49D as the top Stronglight touring crank in the 70's? For a touring double, the mod 99 should have been superior, as it had an 86mm inner (and outer) circle, while the mod 49 inner was 122mm.
Regards,
Jerry Moos
Hilary Stone wrote:
> David Goerndt wrote:
> >
> > I believe the Stronglight 49 was introduced in 1949. I have a mid 50's
> > Peugeot with a similar arm mounting (5 bolts close to the arm) but it is
> > steel and cottered. I believe this is a 55 Competition model, then came the
> > model 57 "Super Competition", then the model 63 "Super Competition", then
> > the model 93.
> > I have a parts catalog from the late 70's (c. 1977-78) that shows the model
> > 49D as an option, with the model 105 bis as the top of the line.
> >
>
> The Stronglight 49D design goes back to pre-war days. Constrictor first
> catalogued it in 1938 but I think I remember it being said to be a year or
> two older than that. And it wasn't just catalogued and not produced I have a
> 49D right arm which is stamped Conloy on the back. Conloy was Constrictor's
> trade name they applied to any aluminium alloy parts they marketed or made.
> After WWII imports did not start to come in again in Britain until 1950 and
> the importers were then Fonteyn and not Constrictor. Stronglight had a 5-pin
> cotterless steel crankset design out in the early 30s 1933 ore so.
> The Stronglight 49D crankset remained current right into the 1980s the
> other designs from Stronglight were far less suitable for touring.
> Hilary Stone