Originally Posted by
airfoil71
Not a Pro by any means but there are plenty of time trials in which 25 -27 miles an hour do well and place when the course is not flat. You are right in one thing, I love to ride and I love to compete against myself and others. As a personal trainer, my motto is the body will only go where the mind will take it.. I will get better as a rider, just curious about the disks. I know an areo helmet increased my speed by almost two miles an hour and the geometry of the tt bike (kestrel air foil) also increased my speed over the trek y foil road bike that I ride.
Wut? Do you have an afro picked out to 4 feet wide?
Even the most optimistic data about aero helmets doesn't put the speed gain at anything approaching 2mph, particularly at 23mph.
The substantial majority of that speed increase was either placebo, or improving fitness.
Once you've got a good aero position on the bike, all the tweaks, like aero wheels, aero helmets, skin suits, not wearing gloves, water bottle placement, etc, are ways to shave seconds and pick up a fraction of a mph.
Meaningful at the margin when seconds count, but they don't get you multiple mph improvements.