North Pass is in pretty good shape but you have to pay attention to every dip in the road. Some dips are fine, some have shallow washouts and others have deep washouts. Some of these you can't see until you are right on top of it so slow down and take you time when riding on North Pass.
Conditions of this road change with every rain storm based on how much rain comes down all at once. North Pass is easily done on an adventure bike.