^ Correct, and more like 99.99% of the trails are off limits for motorcycles due to foot & mtn bike traffic. (I also mtn bike up there.)
A good number of fire roads are also closed due to the campgrounds being closed for the winter season, they open back up in April.
There's one fire road 3N15 that goes from Charleton Flats to Chilao that's open; it's short but a nice hop to get some dirt action on.
Honda XR650L (Dual Sport)
Honda CR250R (2 Smoke MX)
Honda CR500AF (Awesome machine!)
Yamaha WR250 (2 Smoke X Country/Trail/Desert)
Yamaha YZ426 (Plated!)