das Radfahren
Translation
cycling, biking
Examples
Radfahren ist mein Hobby.
Cycling is my hobby.
Das Radfahren in den Bergen ist anstrengend.
Cycling in the mountains is strenuous.
Grammar Patterns
as a subject Cycling is healthy.
Similar Words
das Radeln (cycling, more colloquial)
Etymology
A nominalised verb, from 'Rad' (wheel) + 'fahren' (to ride/drive). Literally 'wheel-riding'.
Memory Tips
This is the verb 'Rad fahren' (to ride a bike) turned into a noun. The '-en' ending and capitalisation signal it's a noun representing the activity.