Originally Posted by avenan
Thats the BMZ frame? It almost definitely is meant to take an italian threaded headset...mine is. A standard ISO headset/crown race will work fine.
Yeah - the BMZ frame. Ok, so all my Japanese headsets are JIS then. FWIW, the top threaded caps screw on fine to the fork, so the fork threads don't seem to be different - just the crown race.
Questions - can I just use a ISO crown race with JIS headset cups/bearings? Where can I get one? If not, are ISO headsets commonly available? Who has them? A quick search of Performance and a few other vendors shows 1" threaded headsets, but they do not state ISO/JIS.
EDIT: A quick Google reveals that ISO headsets are pretty common, indeed. What I'd like to know is if I can use the ISO races with the JIS cups, mainly because I have a "special" JIS headset with sentimental value that I'd really, really like to use.....