MTB West Ridge Trail Climb Head to Observatory, NBD Pinarello Dogma XC

(Mountain Bike MTB) I climb the West Ridge Trail starting at the head in Oakland, CA on my new Pinarello Dogma XC. The video ends at the observatory where it appears it's the start of a foot race.
The next video continues with the descent back the way I came, as I accidentally went back the way I came instead of going further up West Ridge.