I am hearing a slight humming coming from my wheels, mos likely the front but it is dufficult to determine exaclty which one. It gets a bit louder over 90mph.
This comes after a curb impact that put a small dent on the lip of the drivers side rim.

Got the car inspected and every checked out ok so I had it aligned and the got the tires rotated and balanced.

Could there be something that was overlooked? What else should I look for that may cause this sound? Any suggestions?

 

the tires may be "feathering"

 

I have the same problem after I hit a curb with my left(driver) side. If you find out what was wrong, please PM, I've had this problem for about a year now, just toolazy/broke to fix it.

 

wheel bearing? Did you guys try putting stock wheels or undamaged wheels on?

 

run your hands over the tires and if it catches, you have flaring/feathering going on. It will not get any better if that is the problem until you change the tires.

As for the noise after hitting a curb, you have a more serious problem than just flaring.

 

What kind of tires are you using?