Ok, so disassembly complete. What a work out. anyways, so bear with me:

1) the caliper reads that the inside diameter of the top and bottom head tube is 30mm.

2) the headtube itself is 4 5/8 inches tall (don't have a caliper that big sorry)

3) the fork is 6.5 inches tall from the top of the bottom race.

4) the top 1.5 inches is threaded.

5) the top and down tube are connected to the head tube with a very small pin hole (too small to put a finger through), they don't look like they are buckled. but you can't really get a finger in there to tell for sure.

6) I'll probably have to get the race removed given that there's no protruding part of it , the fork tube that is above the race is 25.3 mm all the way up.


7) the serial number is f5i0 139


I have an old 80s fuji fork lying around and it's totally not even big enough to stick out of the headtube.

So, now I have to figure out what to do? What are my options? Obviously new headset. But can I still use this fork? How? I don't know anything about headset spacers (in fact I just realized they existed today) can I use them?

Thanks a billion for helping guys.