I have a cheap Schwinn MB that I'm planning on putting a front hub motor on. It is steel, at least the dropouts are. I think with a fairly low power motor (probably a QT100) and torque arms, it should work fine. I didn't want to mess with the gearing so I figure the front hub is just easier to deal with. I guess the shocks are also steel but I'll check. I read somewhere that I don't really need to worry about the shock. I certainly hope that's true.