As previously noted, at A2A I was totally unprepared for the scathing speeds most experienced racers attain. I'll do A2A again if I think i can do it sub-6 hours...But I need to know what that speed feels like, and how to work to generated it.
I recently found (duh....) that there are indeed inline speedometers, some of which combine with heartrate monitors. Any recommendations as far as good deals, reliability, and durability go?