Yeah I'm interested as well, anyone have any ideas for making them? Would be SO sick!!!
Would you just mount them at the center (instead of having the bearings around the outside of the rim?) You could just have some sort of ball bearing attached to the wheel nut (attached to the inner race of the bearing) and then have the outer ring of the bearing attached to the spinner...
I dunno just thinking...
What should I use to make the actual spinning piece? How should I attach the bearing to the wheel (should I even use ball bearings?)
hmmmm...