I have upgraded the Tinman/ Lidmotor transistor circuit that I replicated in previous videos, to be able to run more powerful motors. This could realistically power a bicycle or even be a good start for a Gerard Morin motor/generator device. If you dont know what I'm talking about check out his video here https://www.youtube.com/watch?v=aOLnf_gP7K8&list=PL5FxVFY3s-gaLCfbA72J77UDFluIFjeN5&index=18