How do you balance on a bike?

You stay up because you keep moving. Your hands turn the bars a little. The bike rolls under you. Your feet push, and eyes look ahead.

A bike stays up when you make tiny fixes. If it wobbles left, you turn the handlebars a little left, so the wheels roll back under you. Your body leans a bit too. It is like keeping blocks from falling: move the bottom under the top. Going faster makes the little fixes easier.

You balance on a bike by making many tiny steering moves. Your body has a center of gravity, the spot where your weight seems to pull down. When the bike starts to lean, you turn the front wheel a little that way, so the wheels roll back under your body. Your eyes and inner ears help you feel the lean, and your hands and body fix it fast. Fun fact: the spinning wheels help a bit, but steering is the main trick.