Now where do we start? I had to do a double take when I saw this picture - I suddenly realised this was a totally bald tyre!

But as I looked closer, I could take a perverse pleasure in thinking that at least it is bald evenly across the whole width of the tyres, rather than unevenly worn with bits of canvas or metal showing. It's clearly in perfect alignment!

But PLEASE - just because you've had your wheel correctly aligned at an Absolute Alignment Approved Centre, it doesn't mean they never wear out! Check your tyre tread depth REGULARLY, and if you see you are approching the "wear bars" get them changed at the first opportunity. You can't gamble with your life or the lives of other road users. 

Parallel Lines