The wheel moving up and down and compressing the shock.
Yes but why is the wheel moving up and down? Because you’re moving forward. And why are you moving forward? Cos you pedalled earlier.
I fail to see how rider in put can have a delayed impact.
I don’t want to be patronising here, so sorry for this 🙂 but it’s simple physics. Energy changes form – so you eat chemical energy, your muscles transform it into kinetic energy that gets transferred via the chain to the bike. Your bike is moving forward, it has kinetic energy that came from your legs.
What if you remove your chain, catch a chairlift to the top of the hill, then ride it down. Is it the pedalling around you did several hours hence!?
No it’s the electrical energy that was powering the chair lift. It gets converted into gravitational potential energy in you, and that gets turned into kinetic energy as you roll off down the hill. Most of that then becomes heat in your brakes.
