ride a bike
ride a bicycle

We used to let him ride his bike, you see.

I have never tried to ride a bike again since.

She never learned to ride a bike or drive a car.

Other than that, he did not ride his bike after 1969.

But it's a little like learning to ride a bike.

"Then perhaps you would show me how to ride a bike."

"The only way I could do any less would be to ride a bike."

"She could probably go to school, ride a bike, have friends just like any other child."

But then she'd have to learn to ride a boy's bike.

"He just wants to go home and ride his bike."