Haven't been on for a while, been crazy busy. I have been getting a loud hum from my tires, so I rotated and balanced them. When I balanced them they said the only tire out of balance was my rear passenger. Not quite sure why that one wheel would be out of balance. Possibly wheel bearing going?? Not hearing a grinding sound or anything just a humming sound starting at 40 mph. I have Conti. DWS for not even a year yet and only go to work and back. Just wondering if anyone has an idea of what it could be.