Anyways, that paper is interesting but it's not what I was looking for.
I was looking for this, because someone said bikes are "outdated" and it pissed me off.
Bikes are not outdated - what they are is undefeated.
No other machine, or animal, can go as far on so little as someone on a bike.
https://www.sciencedirect.com/science/article/abs/pii/S0960148112003254