This is the 2430th most frequent German word.
radfahrern
"Radfahren" means "to cycle" or "to ride a bicycle."
In this sentence, 'Radfahrern' is used in a verb form indicating the activity of cycling.
Radfahrern ist wichtig, wenn man die Umwelt schützen möchte.
Cycling is important when one wants to protect the environment.
'Radfahrern' is in the plural form referring to individuals who cycle, used in dative case as part of a prepositional phrase.
Die Gruppe von Radfahrern hielt an, um sich auszuruhen.
The group of cyclists stopped to rest.
Here, 'Radfahrern' is used as a plural form of cyclists in dative case.