I have three PX-10s (73, 74 & ~76?) and all have Stronglight cranks marked 14 X 125 mm - but I had the 73 tapped out for Phil Wood (English thread) pedals when I bought it and the 76 that I got secondhand was apparently tapped out also (even though it had Lyotard pedals so who can guess?) because my Phil Wood pedals fit it just fine, but they won't fit the 74 Peugeot, so the markings are certainly not a "fool proof" method either. I would suspect that you have the French threads because when I try to put my English threaded pedals into my French threaded cranks they go in a few turns and then stop just as you have noted. Daniel S. Swords New Orleans, LA Jerry & Liz Moos <jerrymoos@sbcglobal.net> wrote:I have Lyotards marked L & R and Lyotards marked D & G. Unfortunately, I also have Lyotards with no such markings, which makes identification difficult. Most Stronglights 93's I've seen do indeed have the thread stamped on the back of the arms.
Regards,
Jerry Moos
> George Elanjian
>
> >>Hey - I got a pair of Lyotard platform pedals for my '73 Px10
> >>w/stronglight crank
>
> One of my all-time favorite parts, used to use them exclusively until
> I became infected with SPDitis.
>
> >>(93?). The pedals don't want to thread more than a couple twists,
> >>so I haven't forced it suspecting i got a mis-match thing going on.
> >>So what is it? Is my French crank vetoing my English thread
> >>pedals? Should I be looking for french thread Lyotard pedals -
> >>thanks
>
> Steve Maas answered:
>
> >Could be. However, often pedals just fit tight in cranks, even
> >though they are supposedly compatible.
> >
> >This brings up another question: does anyone have a way to tell, for
> >certain, if a crank or pedal thread is French or English? They are
> >very close to the same pitch and diameter; even measuring with a
> >micrometer doesn't seem to be conclusive.
>
> In the case of Lyotard pedals, if they're marked "L" & "R" (Left &
> Right) they'll be standard 9/16" x 20.
>
> If they're marked "G" & "D" (Gauche & Droite) they'll be French 14 mm x
1.25.
>
> Stronglight cranks often have the threading stamped into the back
> side of the arm. Some that are marked 14 mm x 1.25, however, may
> have been re-tapped after the fact for standard pedals.
>
> Sheldon "Marcel Berthet" Brown
> Newtonville, Massachusetts
> +--------------------------------------------------------------+
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