My Azonic Outlaws are "opened up" for a thru axle front and rear. Somehow, someway, a small amount of rust has developed where the axle goes through. I'm pretty darn sure that this doesn't hurt anything, but it bugs me. Is there a preferred way to clean this up? I was thinking about cleaning it up with some very fine steel wool and then wiping it down with some Tri-Flow. Is there a better way to do this?