You can go west to Nikotama on Kamazawa or Meguro Doori. Those streets aren't very nice, but I've seen worse. The neighborhood of Gakugei-Daigaku (Highshool area) is OK. You wanna stay away from Kan-Nana or Kan-Pachi, but they let you move about without getting lost. I prefer Yamanote and Meiji Doori because I am located farther east to you. (Those kinda stink too)
Be prepared to MASH pedestrian paths. Cops won't stop you if you ride respectably safe, i.e. not hitting pedestrians, not going full-speed. If that don't work, you can take up the road like any vehicle. Drivers are nice and they almost always "reluctantly" give you space. I usually get out of the way for em as soon as I am out of the jam. I feel bad for those people who's just trying to get through the day. (That also means, I always yield to messengers. But then you'll never seem em outside of the financial districts like Ootemachi. So that's not much of trouble anyway.)
Last edited by Tomo_Ishi; 09-15-10 at 08:21 PM.