> whose performance bottlenecks are imposed by the bike instead of themselves
I'm a fluid dynamics researcher, and I'll tell you the money these people spend on "aero" and "weight saving" and "higher drivetrain efficiency" stuff is 99.9% snake oil. Unless you are among the top 1000 road bike racers in the world.
Increasing your exercise load by half an hour per week, or spending a little time understanding and implementing aerodynamically efficient body posture or other forms of technique, will both yield improvements that are several orders of magnitude higher than the marginal improvements achieved by spending $$$ on "aero" and carbon fiber.
I've seen detailed calculations of rider performance that indicate a 500 g saving in frame weight (which is huge), over the course of a 120 km race with 1200 m climb, will save you a whopping total of 15 seconds on ~4 hours of race time.
I'm a fluid dynamics researcher, and I'll tell you the money these people spend on "aero" and "weight saving" and "higher drivetrain efficiency" stuff is 99.9% snake oil. Unless you are among the top 1000 road bike racers in the world.
Increasing your exercise load by half an hour per week, or spending a little time understanding and implementing aerodynamically efficient body posture or other forms of technique, will both yield improvements that are several orders of magnitude higher than the marginal improvements achieved by spending $$$ on "aero" and carbon fiber.
I've seen detailed calculations of rider performance that indicate a 500 g saving in frame weight (which is huge), over the course of a 120 km race with 1200 m climb, will save you a whopping total of 15 seconds on ~4 hours of race time.