Cherubim Pista

Also, why Italian steerer thread? Surely ISO is the most sensible way to go?

We talked about this on the day, the discussion at the time (potentially garbled through slight language misunderstanding) was that what when they were talking about Italian, they meant ISO. Either that or they meant that Italian and ISO headsets were interchangeable.

Maybe the bigger question is JIS versus ISO and the issue of headset availability. If one wanted a reasonably bling cartridge JIS headset, I guess there is the Dura Ace 7410 headset, although a question exists about replacement bearings.

Hypothetically there is a wider range of 1 inch threaded ISO headsets. One can still get a Campagnolo Record, and in theory Chris King Gripnuts (but where you can actually buy one online is another question).