UPDATE: It's been almost 2 years and I still have 3 of the 4 I bought! The profile life is about 60%. The reason I had to replace another one was because of the nail. = Still calm and I survived 2 winters with it. Get her! Good tires so far. Quiet on the street. No vibration at high speed. Balancing was easy. Only problem was that when received they were dirty. I'm not sure who is responsible for this, but for the price I couldn't really complain.