Lots of old bikes used to use cotters to fix the cranks to the bottom bracket axle. I know that old french bikes had them, as did old english bikes. My question has to do with whether or not the cottered cranks from different countries are cross compatible. I understand that this is a very general question that probably has many, many answers. I was looking up French pedals and came across these
I assume that these are for threaded cranks.
Do english cottered cranks differ from french cottered cranks? I ask because I need to find new cottered pedals for my French cranks and need to know what to search for .