The front tire on my 08 ultra is scalloped on the right side (throttle side of the bike), the left side is ok. tire is three years old with 7500miles on it. Dunlop 402. When I make right turns I hear a tire whinning noise from the road. No noise when turning or leaning left.
Any suggestions why one side would wear more than the other

 

Are you doing more right hand turns? Is the tire cupped?

 

Right hand turns are always tighter than left hand ones - unless you live in a country where you drive on the left side of the road....

 

Tire is cupped on right side, probably do make more right turns too.
When driving bike, if you slightly remove grip on both grips, the bike will always pull to the left. Thought it might be a balance thing with forks or fairing. Hard to tell if it's out of alignment.

 

Aside from road crown, I think pulling like that is an alignment issue. I saw a video back when I had my 07 and put the glidepro swing arm and front motor mounts on. jake put up a vid of how to check and align it both by shop practices and home remedy style repair. Very interesting on how the rear tracking makes the bike go one way or the other. I really believe theres not too many HD mechanics can do this adjustment correctly.

 

Turns out it was a wheel bearing that was gone, caused the tire to tip sideways, ruining tire. Also was the reason the bike was pulling to the left.