Are theses pressed on rotors?

I'm not sure what you mean and I have never changed any on that particular model. I would, however, be shocked if these rotors are not simply held in place on the rotor by a hex head screw or two. Remove the wheel and you will be able to tell immediately.

Good luck,

They're not pressed on but they might be rusted to the hub. After the screw is removed a little Rustek/WD 40 and some "gentle persuasion" may be necessary.

Just held on by a single hex head screw. I find a rubber mallet usually works pretty good if they are rusted on. After you get them off, clean the area up with a wire brush and apply a little anti-sieze so you don't have the same problem again next time you need to change the rotors.

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Ali Al-Chalabi

2001 CLK55
1999 Dodge Ram 2500 Cummins Diesel
2002 Harley-Davidson Fatboy
Merlin Extralight w/ Campy Record