Originally Posted by
StanSeven
There's a GCN video done a few months ago that tested weight difference and climbing speed. It does a pretty good job of quantifying the difference in real world conditions. If no one posts a link, I will do it tomorrow when I get to a computer.
What I found could be googled as "How to climb faster, light bike or light body". It is a diffrent test but similar.
Well done experiment but multiple runs of each set of conditions and averaging would have been an improvement. It simply shows that more weight takes more power to climb a certain grade at a fixed speed. For a light rider and bike a 2.6 kg increase at 16 km/hr on an 8% grade took over 14% more power. Don't tell me you won't feel that.