It's no coincidence that the word "muse" is in "museum!" Nationaal Fietsmuseum Velorama aims to inspire and educate its visitors, so consider adding it to your schedule.
You're spoiled for sightseeing choice when visiting Nijmegen-Centrum. Nationaal Fietsmuseum Velorama is a good place to start here, but there are many other fine sights to appreciate. Radboud University Nijmegen, Berendonck Thermal Baths, and Goffert Stadium are not far from the museum and will round out your day nicely.