Gearbox -physics related question

[MrForbes]

Originally Posted by sporno

Also in cars , people make much more power to the wheels , but getting a lighter flywheel.

Putting a lighter flywheel on an engine in a car can result in better acceleration, because more of the power made by the engine is being used to move the whole car, rather than just increase the rotational inertia of the flywheel.

However, the power to the rear wheels at a constant speed will not be any different.

You have an interesting idea, even if it's not likely to help robot performance, it at least shows you are thinking about new things! And asking questions like this will surely help you to better understand physics.