I need help from a bike techno wizard to settle a debate. I have an associate arguing that by drafting behind a rider you actually slow that first rider down. That doesn't seem possible to me What would be the physics behind that?
They are supporting there argument by this quote out of Lance Armstrong's book:
"Kevins' job was to get behind Zulle and stay right behind his wheel, making it harder for Zulle to pull up the hill. It's called "sitting on him." While Kevin "sat" on Zulle's wheel and slowed him down,....."
Please tell me this a psychialogical ploy not an actual physical phenomenon.