Cyclists ride in a pace line to save energy. The first time I drafted another cyclist it was immediately obvious why birds fly in formation. These riders are about 15 miles into a century ride in Richmond, Virginia. With 85 miles remaining they are, no doubt, attempting to retain as much of their energy as possible.
Wave of Cyclist
In every cycling event I’ve participated in, it seems like people ride in waves. I got the impression these six cyclists were actually two groups of three that just happened to be riding at the same pace.