Originally Posted by
wphamilton
Probably goes back into making your muscles more tired.
Good humor, and true.
The energy you expend moving the frame sideways does not go towards moving the bike forwards.
Sure, the frame springs back ... but it doesn't transfer power back into your leg --- seeing as that power is the product of metabolism. It's not like you can bend a spring and regain the energy you spent bending it ... if that worked, we'd never need to east, just go to the gym and bend springs for a while---we'd get stronger and refuel at the same time.