1) From Twentymile Trailhead to Foolhen Meadows Trailhead - he was out here himself and said it wasn't suited to loaded riding of any kind right now due to the number of trees down. He only got about 5 miles in before he had to turn back.
2) From A to F on the map, in addition to downed trees, the trail is quite rutted - this was reported by cyclists coming into the shop. They had spent hours climbing over the downed trees and were frustrated by the amount they encountered.
Aaron talked to the local forest rangers and they stated it would be at least mid-September before they would have a chance to get in there and clear any of it. Apparently this is common due to the nature of the area.