Just detailed the car and found a 10p size bubble on the sidewall, its hard to see but its on the mich man logo, phoned my tyre man he,s got a new one on the shelf, off to get it fitted. A little bit p-ssed off because i have not kerbed any wheel or hit any pot holes, the tyre in question is only 2 months old with 900 miles on it and its on the rear. oh well sh-t happens