Headset used is a specially designed TAKHION headset. I'm pretty sure the bottom bracket threading is Italian.
First bit of information above slashes the price dramatically. No point in having a rare frame if you can't get a pretty critical spare part for it!
@Soul started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
This site is supported almost exclusively by donations. Please consider donating a small amount regularly.
First bit of information above slashes the price dramatically. No point in having a rare frame if you can't get a pretty critical spare part for it!