Originally Posted by
hybridbkrdr
I thought a threaded headset meant using a 1" threaded fork.
Doesn't have to be. Personally, I've seen more with 1 1/8" than 1".
Hence my guess.
Anything built as a real, adult sized MTB w/ a cassette hub is most likely to be that dimension. But the juveniles, freewheel lookalikes, thats where I'd expect a 1"