Three-speed bicycle

The three-speed bicycle is a bicycle that uses internal hub gears at the rear wheel hub to provide three gear ratios.

Three-speed hubs have been in use since the early 1900s. Though they are heavier than comparable derailleur systems, internal-gear hub systems generally last longer and require less maintenance.

Description

Typically, in low gear, the rear sprocket turns faster than the wheel; in middle gear, the rear sprocket turns at the same speed as the wheel; in high gear, the rear wheel turns faster than the sprocket.

Use

During their heyday, three-speed hubs were used in all applications, including racing and time trialling, cargo cycling, utility cycling, and commuting. In many parts of the world, three-speed hubs are still preferred for commuting and other types of utility cycling over derailleur systems.

gollark: You could actually try PotatOS now. It has many more features than it did around TuberOS.

gollark: I *programmed* potatOS and still do. I do not remember its precise version history and it has no version control.

gollark: Also, I actually don't.

gollark: How is that relevant?

gollark: The original PotatOS - not PotatOS Tau - was made around 13/08/2018 CE.

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