Soft sidewall bought 4 tires size 215 60 16. Tires are quiet but at highway speed develops a wobble that is similar to a tire having a soft sidewall. I had the tires balances 3 times, change my front rotors on my car 2 times and the wobble was still there. I think that the sidewall is flexing on these tires at speed. I am returing them and going back to Continentals.