daltonbourne

Freewheel and cassette almost look identical and perform the same function: to let you coast when you rest from pedaling. However, they have significant mechanical quirks that separate them from each other.

If you wish to use your bike casually around town or to run errands, a freewheel should suffice. It is cost-effective and does not require much maintenance. However, if you are committed to maximizing your bike by taking it off-road, then a cassette may be for you.