Looking at the pics on Wool Jersey I would say that the crankset was a TA
adapter and rings on Stronglight cranks. The arms may be 49A (A for
Acier=steel) instead of the usual 49 D. (D for Dural) Its difficult to make
out if they are cottered or not. There was some talk of Charly being paid to
ride steel cranks. Or was that earlier than this photo?
Mark Stevens Evanton Scotland