It's connected to the two 'gears' and is useful for moving the 'wheel' when the rider pushes on the 'pedals'.
@hippy started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
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It's connected to the two 'gears' and is useful for moving the 'wheel' when the rider pushes on the 'pedals'.