I'd like to see a comparison of TT bikes over the past few years, maybe use 5 riders all around the same build/fitness, then take the average. Use the same course and take detailed notes of the weather to make sure wind doesn't play an advantage. Use a normal road bike, old school funny bike, road bike with aero bars, TT bike, maybe from early 2000's, something from 2009 that is affordable, and the top of the line form 2009.

It would be interesting to see just how much of an advantage aero bars, helmets, and bike technology makes.

On the issue of making a good TT'er, to me it seems that these guys can push out huge wattages, and spread them out over a long period of time. Being able to accelerate your self to 55kph used a much different type of leg and body build than accelerating up a slope. When going up a mountain you have to physically drag your bike and body up the hill, working agaist gravity. When in a tt, you are pushing yourself through the air. Not sure if that made any sense, but hope it helps some