The San Francisco Bay area is a great place to have a motorcycle, maybe the best place to have a motorcycle. There are just so many really good places to go. For example Mt. Tamalpais is just 30 minutes from downtown San Francisco.
To get to Mt Tam, take Highway 1, from Highway 101, north of the Golden Gate Bridge, turn right on Panoramic Highway. At the crest of the hill take Pan Toll Rd. (not a toll road) to Ridgecrest Blvd. turn right to the summit parking lot. The actual summit it a short walk up the trail.
Just about anyway you go from there is going to be a good ride. The road is so good that dozens of car commercials that are filmed there, maybe you recognize it. If you stay on Ridgecrest it becomes the Fairfax-Bolinas Rd., and that winds through the forest to, you guessed it, Fairfax.