Yes it does move.
The wider the rotor, the narrower the hat. And I don't care if it's a two piece or a one piece cast.
You only have X space between the ball joint and the wheel. Fill it with a narrow rotor and you can fit the caliper, fill it with a wider rotor and the whole package shifts outboard realative to the ball joint.
All this assumes you want to keep the wheel in the 'home' location and not do fat spacers.
The more you move the center of the rotor out board (only way to go) the more room you need behind the spokes. While the rotor is wider so too must the outer face of the caliper move.
