I am attaching a map that shows the Morphew home, the route you would take to the spot where BM said the bike was found, and the approximate location of where the bike was found.
If, in fact, the bike was staged, I would presume it was done under cover of darkness. If the person staging the bike drove the route I have marked, as he turned right off Puma Path and started up 225, he would have a long fairly straight road behind him. He would be able to detect the headlights of any cars approaching from his rear. As he took the next right on 225 just below the intersection with Hwy 50, he would likewise see if there were any cars approaching from the front. If he pulled over at approximately where I have marked the spot where the bike was allegedly found, his vehicle would be on the same side of the road. He could quickly get the bike out of the back of his vehicle and hurl it down the incline. He would not be seen from Hwy 50. Furthermore, if this was done in the wee hours, there would be next to no traffic anywhere in this area. If so inclined, the “stager” could continue on and throw a personal out by the side of the road somewhere just west of the intersection of 50 & 225.
This is a hypothetical theory as to how the bike may have been staged. It is MOO.
ETA “allegedly” as to the where the bike was found.