But that wouldn't make the rotor rub against the boss mountings at the top edge of the rotor. That means either the boss is in the wrong place, the disc is sitting too far out, or the hub is holding it too far out.
The rotor doesn't rub on the mount bosses it just gets very close. The only rubbing was the 6 bolt adapater on the bottom of the fork. I can mount the caliper and spin the disc ok
But that wouldn't make the rotor rub against the boss mountings at the top edge of the rotor. That means either the boss is in the wrong place, the disc is sitting too far out, or the hub is holding it too far out.