No it's not just one screw that holds the rotor... The rim, when properly torqued down holds the rotor onto the hub... Most cars don't even have screws that hold the rotor to the hub like the E39...So wait.... the only thing holding the damn rotor to the hub is ONE screw and the caliper/pads??????
How does that hold up!?
wow. I didn't know that the bolts required torque specks. I thought that was just wheels. now I have to buy a 7mm allen for a torque wrench. (I have to buy a torque wrench also.