Tire will wear off more in the middle when overinflated due to middle being pushed out more than it should. When under inflated it'll wear off more on the sides because center isn't getting as much contact and so sides do more work than intended to originally. On a side note - I'd recommend keeping your tires slightly overinflated (better handling and some argue that you also get a little fuel savings), and definitely do not drive on underinflated tires (underinflation severly increases chances of hydroplaning!!!). Personally I keep it 5-10 psi over factory recommended pressure (make sure that your tires are cold when you check their pressure, best time to do so is in the morning before the sun comes up and with car not driven for at least 2-3 hours).
Underinflated tires wear faster on the sides than the middle.
if it is worn down the middle it means the tire has to much air in it. if the two sides of the tire worn there is to little air. if it is worn at one side of the tire the tracking is out
In the middle of the tread area,
Definitely ! - Both sides of tread will usually show erratic wear.
Drivetrain damage, excessive tire wear, bad steering, alignment problems.
they will fit with no major probles, the only thing that would happen is the tire might crown in the middle. that just means that the middle part of the tead would wear quicker than the rest of the tire.
When the tire tread wears down to the wear bars, the tires are ready for replacement.
yes
Camber and toe can both cause inner tire wear.
Yes, if camber is not right the tire will wear prematurely.
Extreme braking and low inflation cause wear on a bike tire.
Yes. Low pressure will cause edge wear. Over inflation will cause center wear.