Is this strictly for dual purpose guys, or am I welcome with my strictly off road, WR250?
If you ride the Hard Route you can do that with your not licenced motorcycle, you will however be using some Forest Service Road that require that you have some kind of 3rd party liability insurance.
The second half of the loop that is not posted, uses the main road back to the campsite, any non licenced dirt bike riders will have to backtrack the route to the campsite, thats more fun than riding the pavement anyhow.
Tom