In Australia, "fixed-wheel" is the normal term for the subject of this article — meaning the opposite of and "fixed-gear" usually refers to a single-speed bicycle.
A fixed-gear bicycle (or fixed-wheel bicycle, sometimes known as a fixie) is a bicycle that has no freewheel, meaning it cannot coast — the pedals are always in motion when the bicycle is moving. The sprocket is screwed or bolted directly to a fixed rear hub. When the rear wheel turns, the pedals turn in the same direction.[1] This allows a cyclist to stop without using a brake, by resisting the rotation of the cranks, and also to ride in reverse.
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