Hello,
I am rebuilding a 1951 bicycle. The pedals are old, rusted and white. From what I can determine they are M14 / 1.25 thread. The internet has very little about this size. Everything is listed as 9/16 inch instead of metric. I have a few questions for you:
1. How do I verify that these pedals are indeed 14 mm
2. Do you know where I could source (buy) metric pedals?
3. What is the difference between a 14 mm and a 9/16? Is there a lot of work to change them from one size to another if I cannot find the metric ones that I need?

Close up of existing pedal