For most bikes this ratcheting mechanism is in the back wheel, so when going down a hill the pedals, the chain ring, and the chain are all staying in the same p

For most bikes this ratcheting mechanism is in the back wheel, so when going down a hill the pedals, the chain ring, and the chain are all staying in the same position. In the demo the chain ring and chain are moving under the motors power, but the pedals are remaining still.