From a non-racing point of view, in the 40+ years I’ve been road cycling, the #1 thing that improved riding FOR ME, with regard to comfort on the bike, was going from toe clips, to clipless pedals. Other than several triathlons every season, I don’t do any racing. I’m not really into analyzing stats from my rides. I just like to know how far, how fast, and time that I’ve gone. So computerized…and then GPS apps have been great. — Dan