How a freewheel works. From Ingenious Mechanisms for Designers and Inventors, 1930, by Franklin D. Jones, p61-62.
@Jonny69 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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How a freewheel works. From Ingenious Mechanisms for Designers and Inventors, 1930, by Franklin D. Jones, p61-62.