Indeed you can, I've been riding there for years, last week we had two cops rock up on trail bikes and wave whilst they went by, as long as you stick to the bush, trails and not the public dirt roads .. all is good man.
aussiepride93, if your willing to travel 15 odd minutes you could give Riverstone bush a thrashing, pretty sweet place to ride, if anyone knows anywhere in western syd to ride give us a shout, cheers.