Do not confuse it's nonsense.
Lightness does matter!!!,just ride a light, aero, comfy, pricey and stiff bike to see the difference guys.
A heavy muscle strong man is going faster that thin and weak man on any bike.
A strong thin man climb hills faster on a light bike...
exactly rider weight is so much more important, but it matters the most for a pro because they have uphill finishes and uphill attacks. but we get to take that weight down a hill as well, giving us extra potential energy on top of that hill.
Do not confuse it's nonsense.
Lightness does matter!!!,just ride a light, aero, comfy, pricey and stiff bike to see the difference guys.
A heavy muscle strong man is going faster that thin and weak man on any bike.
A strong thin man climb hills faster on a light bike...