[R.C.]

If you use 2x1 and at a 1/16" for the frame, make sure if the shaft is live put bearings in the frame. But if the wheel rotates on the shaft, put bushings in those spots where the shaft rests. If you leave the shaft by itself in the frame, over time it will eat away at the frame. I prefer to stay away from direct drive because you either have to hex or key your wheels.