Recently, in the past few months I've heard major tire roaring noise (atleast what I think it is) to the point where at 30mph I can hear my interior panels rattling. The noise goes away as I move faster but I still hear the tires roaring. My steering feels perfect with no vibrations. I have 20" R1 Racing Hype Wheels with a staggered setup with 8" in the front and 10.5" in the back. I have an unlimited alignment deal so I was going to start with that and maybe just add the extra $ for high speed balancing. I've never done high speed balancing before on my 20" wheels, which I've had for 3 years. My tires have plenty of thread on them still btw.

 

Even with plenty of tire tread, you might have tire "feathering". If it gets worse when you come to a stop and less while you are moving, you probably have it. Only solution is to get new tires. I lived with mine for a while since my tread was so good but the sound got worse and worse and started to rattle my dash coming to a stop.