i just bought a Schwinn stingray chopper bike today (2nd hand) when i got it home to ride it i noticed that whenever a certain part of the wheel gets to a certain point the wheel squeaks! could this mean the tyre needs more air or what?
It could be several things, but probably not air. I would check to see if the tire or wheel are rubbing on anything, or if the noise is coming from the hub, I'd check the bearings.