Kevin: See the link below for the Schwalbe Marathon, my choice as The
Bomb for brevet tires in AK, from my humble opinion. Kevlar on face
and sidewalls. Run 'em with a slime tube and barring major slices you
will not spend much time fussing with tires. Not the fastest tire with
the tread and weight of the slime, but virtually worry-free. I have
run this combo for two seasons in AK and during my ill-fated PBP
attempt with 0 issues. Ran this duo as 700 X 23c on my Southern
Transcon last fall with no flats while other riders counting up to 35
flats each during the 26 days. Definitely recomment rotating front to
back at mid season to maximize wear and safety. Tread is excellent in
rain and semi-slick conditions.
This link has them on sale for $35, a great deal considering softer,
no-Kevlar options cost that much. The added bonus is the reflective
sidewall for AK riders. Another great feature is a wheel strip on the
sidewall if so inclined to run a light generator on front or rear for
the long brevets.
I would be interested to hear about the rubber of choice from others.
John
http://www.biketiresdirect.com/pscmar/schwalbe_marathon_plus_700c/pp.htm