More than 600 riders from 25 countries compete in the Bike Messenger World Championships.
A lot of the riders like the competition. Some of the riders think that if they win, they will be able to get a job anywhere.
Some riders just like being there. They have a lot of fun and meet other riders. They also like riding the steep hills.
There are many types of riders. Some riders have tattoos. Some of them have pierced body parts. Some have wild hairstyles. Others riders have a clean cut look. There were two messengers with only one leg.
The event started by having 5,000 people ride their bikes through town. The riders wanted other people to be aware of what they do.