Most bicycle owners maintain their own bicycle. But, a bicycle shop may be willing to maintain a bicycle, if you ask.

The bicycle squeaked.

I've had a brand new bicycle for my birthday.

I go to school on my bicycle.

The noun 'bicycle' functions as the subject of a sentence or clause, and as the object of a verb or preposition:

The red bicycle was very cool. (subject of the sentence)

I bought a basket for my bicycle. (object of the preposition 'for')

The noun 'bicycle' used as adjective, called an attributive noun:

There is a bicycle lane on the road where I live.

The word 'bicycle' is also a verb:

We often bicycle to the library.

A bicycle fork is the portion of a bicycle that holds the front wheel and allows the rider to steer and balance the bicycle.

Who is the father of bicycle