[XMPPwocky]

And, ultimately, what is a bicycle but a very efficient pair of running shoes?

[sorenjan]

UCI has very strict rules for bikes, like minimum weight and geometry. Otherwise everyone would be using recumbent bikes with fairings, and that would be a different sport.

I don't think there's anything wrong with limiting technological advances in order to preserve a sport, people that want to compete with recumbent bikes or leaf springs under their feet can do so among themselves.

[the8472]

bicycles and shoes are not homotopic

[akavi]

What about shoes and roller blades?

[benibela]

Or shoes with really strong springs: https://en.wikipedia.org/wiki/Jumping_stilts