Please also remember

safety when you talk about attaching things to wheels that are already spinning beyond what they're designed for.
a little searching and you can find a pic on CD of what happens when tread separates from a wheel by pulling out of its rivets, but don't if you have a weak stomach.
Stay far from the plane of the wheel ("plane of death", "plane of destruction"), and use guards if you're going to experiment further with (cough) re-inventing the wheel.