Hi, I've gathered thus far that while the '08 Kapu takes a 1" threadless headset, it's not a standard ISO 1" size but rather a JIS (Japan Industrial Standard) 1" size. However, I'm having a lot of trouble locating a specific model of threadless headset that comes in 1" JIS instead of ISO. Apparently when Kona chose the FSA Orbit X, they must have specced some kind of custom version of it, because I've read that the commercially available FSA Orbit X is an ISO 1" and won't fit the crown of an '08 Kapu without reaming.

Could someone suggest a specific make and model of headset to me, ideally with a retailler who carries it currently? Thanks so much.