Question : Cycling as Energy Source?

Note : My first post!

So I'll give you this scenario : A person walks up to a gym exercise cycle (or whatever kind of cycle that stays in place) and cycles on it for half an hour; or fifteen minutes, or even ten minutes depending on our endurance. The energy exerted from the movements is stored in the same way as how energy is stored from water or wind turbines for later use. Then the person uses the energy stored to rev up their motorcycle and go for a ride. Now, how far would that person be able to go, before it putters out and dies?

It's basically the same way as how water and wind turbines work. Of course, it'd most probably generate a lot less than those building-sized installations, but I wonder? Would a full crew of cyclers be able to rival a dam and power a city's worth of transportations, replacing the need for gasoline?

...I don't have the necessary knowledge on physics or engineering to begin to figure out the math on this.

As an aside, though, how would energy supply be if every home has a cycle for the sole purpose of generating energy (With the side gain of beneficial exercise)? There's been many innovations involving sustainable energy sources, I've heard, many of them involving turbines with the means of rotating them not as structurally invasive to the natural environment as the designs of their predecessors. Why not at our own homes, or at our existing buildings that's already taken up space?

There's the possibility that this has already been put to motion, of course, rendering this speculation obsolete. Or it had been speculated a long time ago, and a long time ago too had been proven inefficient. In that case, can it now be optimized, with the current technology and accumulated knowledge? In the scenario that it can't, then, well, this post would've be for naught. On the bright side, not only does this need solid proof to reach a conclusion on, even a proven failed speculation could lead to several potentially successful ones, I believe?

This has been thought up as one of the attempts to find a solution to the gasoline problem. Never mind the increasing demand and the decreasing supply, global warming only showed signs of slowing when the whole world went into lockdown, putting the majority of transportation usage to a stop (which by this time of writing seems to have long returned to normal, at least judging by the sounds of the traffic just outside the window here). Electrically charged vehicles are looking to be the new solution, but I wonder what the issues will be on getting them to the mainstream market?

...If nothing else, we might as well go shopping and vacationing on horseback or the like.

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~~~ Alternate text :

Idea : "New energy source!! No gas!! Free exercise!! Yay!!!"

Several factors that point to uncertainty of idea merit : "But-"