• Donnerstag Abend Radfahren Klub

    Not bad, but you'd say "Donnerstagabend Radfahrer-Klub" if you were to go with that one. "Radfahr-Klub" would sound a bit clunky and I think wouldn't even be used for the sake of the abbreviation, but isn't impossible. The problem with the idiomatic solution in German ("Radfahrer-Klub") is that it means 'cyclists' club' rather than 'cycling club'.

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