The most popular XC tire is the Panaracer Firee XC Pro ( Ithink it's pro)
They weren't in the top 10 of the Mountain Bike Action Tire report-
but it is the readers most popular tire.
Apparently it's good in a variety of conditions- but especially hardpack.
You can usually get them pretty well anywhere- if the ads in the cycling mags are to be believed.
Check Ebay too.
Kimba
Whe you come to the end of all you know-
and you are about to step off into the darkness
faith is knowing one of two things will happen-
there will be something solid to stand on-
or you will be taught to fly...