While I wouldn't recommend over ~30mph on a department store bicycle without getting into bigger upgrades, with the correct hubs/wheels/frame/brakes 60mph is not much. There are cheap Chinese mopeds do that completely road legal and safe.
If I was even thinking of a 212 predator build, it wouldn't be on a cheap frame and I would be looking to do at LEAST 50mph and register it. If not then you might as well just do a 2 stroke with a few mods and a shift kit and not deal with the giant heavy motor and all that torque.