Originally Posted by
maddog34
sidenote: RIM brakes on bikes are actually Really Large diameter DISC brakes.

Not really. One of the defining properties of disc brakes is that the rotor is mounted directly to the wheel hub. Disc brakes apply the braking force (torque) to the hub. And then it is transferred through the spokes to the contact area on the outer circumference of the wheel.
Kinematics of rim brakes is significantly different.