Assertion: hub | /r/HasProperty | driven by either the ring gear
Facets:
value: depending on the gear
type: OTHER
Source sentences:
text: Epicyclic gears as implemented in common bicycle 3-speed gear hubs: the sun gear (yellow) is fixed, the sprocket drives either the ring gear (red) or the planet cage (green), and the hub is driven by either the ring gear (red) or the planet cage (green), depending on the gear selected.