Originally Posted by Salamandrine

I've heard rumors that there were some French threaded Look pedals produced. Never seen one mind you, just heard rumors. I suspect you'd have to go to France, or at least be able to work the phone in French. If they do actually exist, they are rarer than unicorns.

I went through a similar conundrum about 10 years ago. I like vintage bikes but prefer clipless. At this point I've decided that the vintage bikes keep their pedals and straps. For me at least it's the best option. You can buy shoes now that will take old fashioned cleats and 3 bolt Look type. 10 or 15 years ago, that wasn't an option.

OTOH, if you only have vintage bike to ride, I kind of see your point. I don't have the heart to tap out cranks if everything is otherwise original. IMO a better solution is to get another crankset, pull the original, and put it in a box.