Hello all. I grew up riding dirt bikes but have been riding a cruiser for the past 17 years. Just bought a DRZ400 with hopes to do some of the TAT in the future.
Welcome to the site!
If you are riding the trails in the SHNF, be aware that you need the offroad sticker or you can get a nasty ticket from a ranger. To ride the actual roads, you just need to be street legal, no sticker required. You can get the stickers at most bike shops. I think they are $16, but they might have gone up since I last checked. They are good for on year. You can get more trail info here:
http://www.twtex.com/forums/showthread.php?t=67599