Terminology: coaster brakes vs free wheel? I just read this article https://www.tikesbikes.com/pages/coaster-brake-vs-hand-brake and it confuses me. They oppose coaster brakes with free wheels. My understanding is that the opposite of freewheel is fixed gear and that the definition of freewheel is that you can roll the rear wheel while the pedals are at rest (not rotating). That is, most normal bikes with coaster brakes also have a freewheel setup.

Am I misunderstanding something here? And is there a word for bikes/the setup that allows you to pedal backwards?

Update: of course there is a Wikipedia article https://en.wikipedia.org/wiki/Freewheel and by just reading the introduction it seems that I am right. Freewheel has nothing to do with pedaling backwards. But that question remains: what's the word for a pedaling backwards setup?
It doesn't make much sense to insist on one thing being the opposite of another, so let's just focus on what these things are, and you can decide for yourself what, if anything, is "opposite" of what.


A fixed-gear bicycle is one in which the rear sprocket is mounted rigidly to the rear wheel, so they can only rotate at the same speed as each other.
A freewheel is a mechanism that allows the rear sprocket (or sprockets) to freely rotate more slowly (fewer revolutions per minute) than the wheel, including rotating backwards while the rear wheel is stationary or moving forwards.
A coaster brake is a mechanism where pedalling backwards engages a brake within the hub.


I'm not sure what you mean by "Freewheel has nothing to do with pedaling backwards." The freewheel is precisely the mechanism that allows you to pedal backwards without either driving the bike backwards (as would happen on a fixed-gear bike) or braking (as would happen with a coaster brake).