Originally Posted by
Dirtdrop
Post a picture of your spindle. I think a lot of us can tell if it's ISO or JIS just by looking at it. JIS is the stubby one. Your crank is Japanese, so that's probably what you've got, but not necessarily.
Good luck finding a vintage French crank with rings in decent condition for a reasonable price. Make enough low ball bids on eBay and eventually you'll get one, but it could take a while.
This is a new spindle, not installed yet, so it may or may not match what's in there now. I just want it to match the new crankset:
Bought an old Dura Ace on ebay that looks to be in pretty good shape. When that arrives I'll have a known quantity: JIS taper & 9/16-20 pedal threads; also it has the smaller chainring I wanted to try, and the cranks are 177.5mm , so I can see how I like longer cranks. That'll give me a better idea of what I really want/need as far as rings and crank length, before I bid on some NOS Stronglight someone just found in an attic in Paris.
And I really appreciate all the advice/help/assistance/suggestions everyone has given.