I rode this while exploring NW Bootleg area. I wasn't going to post it except I did see bike tracks and some other insane individuals do ride this trail.
If your bike skills are extremely polished, you get a thrill from living on the edge of healthy and hospitalized AND you have full body armour...then this trail is perfect for you!
Seriously, this one was a tad over my head, but I am sure there are plenty of folks who can manage this quite well. It's not particularly steep and no drops to speak of, just very difficult terrain with a price to pay for errors.