How come you never forget how to ride a bike?

Who invented the bicycle? How did early bicycles differ from today's bikes? How are you able to balance on your bike? For free home activities sign-up at www.WhoSmarted.com  See omnystudio.com/listener for privacy information. See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.