Since y'all have been so good at answering this neophytes other bike maintenance questions, anyone know the answer to this one:
Whenever I take off my back wheel (to fix a flat, for instance), when I put it back on, the disc brakes rub a bit, sometimes a lot. They didn't rub before I took the wheel off. It sometimes takes me 30 minutes to get the wheel set so that the rub is minimized. Sometimes it requires loosening the axle(or is called a hub?) a little, which I bet isn't the safest way to solve the issue.
Any thoughts? Thanks