Iam an electrical graduate.Iam doing a project out of my own intrest.Iam intrested in designing a motorized shoe.If Iam about to use 12v supply from a battery,then which motor should i use? what should be its RPM? It should overpower a weight of 80kgs. Speed is not the concern,as it a motorized shoe,a low medium speed is enough.so, please help me.