This bike doesn't need a lock!

Ready for your cross-country bike trip?

Billie Samuels was a famous Australian cyclist. This 1934 photo shows Samuels' bike, with the mascot she always rode with: A little koala! (From here.)

Kitten in a bike-basket!

Via.

Now THAT'S a big wombat!

From the State Library of New South Wales (Australia), 1954.

Good dog!

This photo is from 1911. I love it! (From the Library of Congress.)

Bike helmet? Check. Bike? Check. Bathrobe? Oh yeah!

My nephew likes to ride his bike. At night. In his bathrobe!

Let's go for a bike ride!

Hey, it's difficult for a grown man to find a cute bike that fits!

He just learned to ride his bike...

...and he's feeling pretty good about it!

"Thumbs up everybody, for rock-and-roll!"

No bike-riding in the airport!

Kids. Bikes. Rain!

What is it about little kids riding bikes in the rain that's so cute? Aw, who cares? Just look at 'em!

Photo from Portland Afoot.