An Ural is completely up to the task.
I'm a n00b, still checking out this website, so I don't know if it qualifies as an "Expedition" (I think it does), but there's a guy who has ridden his Ural from Oregon to Tierra del Fuego, and from Oregon to Prudhoe Bay, and someone (maybe someone different?) that rode their Ural across Canada...and of course, Carla King who rode a brand-new 1994 Ural around the Countries of US and Canada (with quite a few problems along the way...).
I'll be taking my new '07 Ural GearUp on a 2000-2300 mile trip through the Yukon, and into Alaska, this summer.
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