This has to be the worst worn motorcycle tyre that I've ever seen. When the owner of this Honda ST1100 turned up at the shop I couldn't believe my eyes as to the condition of his tyres. The front  tyre had become so worn out that the steel belting of the carcass had started to fray and actually cut the palm of my hand open as I removed the wheel from the bike due to the sharp fragments that were now sticking out of the tyre. The tread was gone and the profile of the tyre was so distorted even pushing the bike around the shop was a handfull.  I'm surprised this tyre stayed air tight while in such a bad state. The rider doesn't know how lucky he is to have not crashed riding with tyres in such a poor condition. Insane stuff!