Quote Originally Posted by Midmichigangal View Post
What does truing the wheel mean? I have also noticed that my back wheel is slightly crooked so the rear brake has been rubbing on the wheel. My bike is only a few weeks old. Does riding on uneven pavement and going over bumps cause the wheel to get out of alignment?
Truing a wheel means adjusting the spokes so that the rim forms a straight line when viewed edge-on. Wheels can go out of true for any number of reasons, including going over bumps.

If your rim is rubbing against the brake pads all the time, make sure the wheel is sitting straight in the drop outs. If it's just hitting in a few spots every rotation, then your wheel needs to be trued.