For you whom own Monster Cross bikes -
Mounted up and measure brand new unriden at 60psi = ran a little small, more like 45
Also took a quick float on them over really rough, pot hole pavement to see how they rolled on such compared to my 38 Triggers - psi @ 60 R & 55 F, my weight is 180 #. I did not notice and restraints in roll resistance but what I immediately noticed is the psi could drop a good dose.
* COMMON SENSE tells me tube-less for gravel & dirt roads, may even double track don't mean much with these tires as I can tell already for my weight I will be able to take them down to 35 psi Easy. I have Never had flat issues with these tires.
* They are my favorite......as the label says "Multiuse" tire. I am so happy Specialized now offers them in 47/1.85" for 2015.
* They run small, you Monster Cross'ers should be happy for that if you like the tread.
* Shown on my every changeing 2013 Specialized Crosstrail - Dirt Tour'er