Why: Because you do not need to be wearing a blue aerodynamic helmet to order a venti iced coffee
Take off the helmet! We all know you are trying to move as aerodynamically as possible, but are you that worried physics may keep you from your tasty beverage for an additional .000000000000000000000007 seconds? It is a simple two-step process:
1. Elevate arm to chin
2. Take off helmet
Yes, you have two favorite things in life - bikes and spandex - but it is not necessary to continue to prove the point.