Once, I took pictures of guys who were training to do different tricks on bicycles in our city park... They were mostly children or teenagers and had the most primitive bikes, not suitable for jumping... But it did not bother them, they just did what they liked. Sometimes they succeeded, sometimes they fell and tried again.
They learned to jump, I learned to make photos of moving objects.

One of the few photos that is not terribly blurred and did not go to the trash immediately after shooting. Energy of cycling, captured on photo.