Cycle Without Turning the Feet
This page is the CodyCross answer for the clue below from Taking Care of Our Planet, Group 1572, Puzzle 3 (Renewable Energy).
Question is: Cycle Without Turning the Feet
and the answer is: FREEWHEEL
Word Meaning:
FREEWHEEL — A device in a transmission that disengages the driveshaft from the driven shaft when the driven shaft rotates faster than the driveshaft.
Definitions from Wiktionary.