jokes aside i have seen many tyres recently with tyre bubbles and infact hreres a personal experience when i was filling up air at a petrol station a new 316i bmw stopped by and it had a bubble like the one below in its sidewall in front tyre, i told the owner he should consider replacing the tyre as its dangerous. bubbles in sidewall if unattended keep growing and get bigger and bigger like below until it leads to catastrophic tyre failure, even though with the bubble the tire would still hold air. i was disappointed to hear form the owner that he just bought this car brand new and tyres are "genuine" and he drives in city so he won't replace it. you can pay so much money for a new bmw in pakistan but be still stuck in the genuine thing mentality is very disappointing to see. so guys if you see bubbles very common in low profile tyres do not take risk and change the tyre
