Yes it is a 1" threaded Mavic headset! Are they rare?
I wasn't planning on selling it.
The top nut, is fairly rounded, I had to use stilsons on it to remove it, I need to grind some new flats on it.
I havn't posted on the Rascal owners thread yet, I was waiting untill the bike is finished.
A couple of years ago I threw away loads of old bike parts, because I thought there was no demand for them! I had the oversize Alpinestars handlebars and stem, and I think I may have had the origional Klein bars and stem as well as loads of other stuff.
I weighed my Pace RC30 forks the other day, and found they weigh more than modern suspension forks (more than half the weight of the frame!) @ 2.2lbs. But I still consider then to be the best rigid fork there is. My second favourite is the Kona Project 2.
The bottom bracket came out with both bearings still attached, bit of a pain. They were stuck solid. I left them overnight in a container of Coke, then heated them up so they were red-hot and put them back in the Coke (becareful, it may explode) then hammered them off, much easier!