Why wide angle - the dynamic image
Wide angle lenses bring movement and energy to a photograph so when you want to capture movement and energy, you're half way there if you use a wide angle lens
The use of a wide angle in this shot of Dr Bike in Lewes means that every aspect of the shot is in focus, both men, both bikes, and where they are. As this shot was taken for the Dr Bike website which has been created to let local people know about their services, this was a useful thing to achieve.
If you want to read more about the technical aspects of wide angle lenses, here is a pretty thorough article on the subject