I just checked my tires all around and they look fine. downwardspiral, your issue there is not just from rubbing on a bolt - those tires are experiencing very uneven wear due to some sort of an alignment issue. Get some new tires mounted and then get to a good alignment shop and maybe even bring them a print out of that picture.

I'm running factory wheels and the original Conti tires, with Eibachs all around - no issues at all.