Is this vintage fork safe to ride?
I have been enjoying learning about and taking apart my dad's ~1973 Gitane Super Corsa since I got it a few weeks ago. However, I noticed yesterday upon removing the fork that a crack has propagated within the flattened section of the threaded portion of the steer tube. I have no idea how long it has been there. It seems to me that threaded steer tubes would be subject to less stress than their threadless counterparts, but I still would like some feedback regarding the sanity behind riding this fork. I am not planning on making this bike my daily commuter, but I would like to ride it regularly. Would it be wise to find a replacement fork before I ride this bike? Thanks for your input.