> And yes, a recreational rider doing a serious distance will often carry 1.5kg of water, so saving 150g with special lightweight paint or whatever is lost in t

> And yes, a recreational rider doing a serious distance will often carry 1.5kg of water, so saving 150g with special lightweight paint or whatever is lost in the noise. But a lighter bike is still a lighter bike. If everyone is carrying 1.5kg of water, then a 150g lighter bike still has as much of an advantage[1] as it always had. [1] Likely unmeasurable. Yes, there's some sarcasm in my comment, but I hear this type of reasoning all the time, e.g. "people say they want thin phones, then put a case on them anyway, so what's the point?" The point is a thin phone plus a case is still thinner than a thick phone plus a case. Similarly, a light bike plus 1.5kg of water is still lighter than a heavy bike plus 1.5kg of water.