I would not bother bringing a back wheel, just buy a beater while you are here. No fixies yet, I brought i up to my friend who has been living here for about 3 years, but he said its not worth having ANYTHING nice because it will disapear. You should see the crap people ride around here, rusty, loud, heavy, lights falling off. I am amazed at he amount of generators people use on their bikes to power the lights in the front and back (my friend said its law that you have to have a light or you could get a fine). Anyway, when you get out here just buy a cheap beater (dont worry, the junkies will find you to sell you a bike if they see you walking without one) and have fun.