Hey Duy, how's it hangin?
Aren't you up around Vancouver area? Like the best mountain riding in the world? Watch out for bears and wolves, though.
Where I'm living now, still SanPablo, I got a 16 mile dirt loop that goes up to InspirationPoint, about 900' elevation, then back along the ridge towards home.
My g/f rides a cyclocross bike, me an old FisherHooKooEKoo.
She likes her 14lbs road bike more, but on the road, of course.