I was checking on the state of my Bridgestone XO5 this evening, just tinkering with the bike when the relatively new Michelin Dynamic tire appeared to have uneven excessive wear. Closer inspection revealed 4 flat spots which made me fuming mad.
An investigation revealed that one of my son's more notorious "friend" took the bike one day at a basketball practice without his permission, and started doing rear wheel skids. This I presume, was to show off to the girls and the guys. What a blistering idiot! In a civilised society, one does not take things without permission and then abuse it.
I was wondering why the bike didn't roll so well lately and now I know. Bike abuse is liken to child abuse in my books.