Definately could be that, but also it could be brake problems.
I had my tires rotated and balanced. Ever since then around 120 KPH I get a Steering wheel vibration. I had my Wheels checked and two of my wheels were bent. I had my wheels re-rounded. I still have steering wheel vibration.
My question is should I get my tires rebalanced again? Maybe the first time they were balanced the wheels were bent...Now that my wheels are round again (the metal part, not the tire) should they be re-balanced because of the change in the wheel?