Ride a Bicycle Without Pedaling
This page is the CodyCross answer for the clue below from Airport, Group 454, Puzzle 1 (Runway Lighting).
Question is: Ride a Bicycle Without Pedaling
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.