I agree, potable water is scarce, especially once heading north along the Alaskan hwy. I used a hybrid devinci and it seemed to handle all my gear and my 190 ibs. without any issues. The only unpaved sections are construction areas. There are several long grades throughout British Columbia, the worst are between Fort Nelson and the Laird Hot Springs. Steamboat Mountian is real nasty, and then crossing the Cascade divide (it can snow etc. at any time here) I've ridden the Pacific Coast which is a great ride, but I rate my ride from Fairbanks south to Vancouver as the most challenging and satisfing accomplishment. Saw a tremendous amount of wildlife between Prince George and Fairbanks. ( several grizzlies in the Cascades, so camp accordingly) Would recommend this ride to anyone in reasonable shape who is looking for a great wilderness adventure.