SDinhofer wrote:
i am wondering, if i tested well, how much TIME improvement would I likely see on an IM course by using either the Aerohead or the P-09? a minute? 5 minutes? more? less?
From Giro via aerogeeks: "Giro tells us the Aerohead MIPS is 42.4 seconds faster over 180km (at 250 watts) than the Giro Advantage (and 25.5 seconds faster that the Air Attack Shield)."
So there you go. Probably less than a minute.