While I'm on the subject of things that are for riding. The new Giro Prolight arrived for me last week. They were launched at the 2009 Tour and is the lightest helmet ever since records began etc etc. It clearly lighter than the Spesh 2D i'm using. Some folks say you either have a Specialized head or a Giro, urban legend and vainity i think rather than a design fact?.
Spesh I think sit taller while Giro sit more like a ball on me. The design is different possibly as revolutionary as when they were first released in 1986. Couple more races before I make judgement.