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bicycle-tools

v1.1.0

Published

A collection of formulas for gearing

Downloads

5

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Links

Git

Maintainers

nicinaboxnicinabox

Keywords

Readme

bicycle-tools

A collection of formulas for gearing calculations

Formulas

Formuals use exact measurements (ISO) instead of nominal sizes, which may be more conventional. This provides better accuracy, but may result in values that are higher or lower than what you expect.

  • development
  • gainRatio
  • gearInches
  • gearRatio
  • skidpatches
  • speed

Sizings

Wheels include ISO and nominal sizes.

  • chainrings (20T-64T)
  • cogs (8T-36T)
  • cranks
  • wheels (from Sheldon Brown's data)

License

MIT 2015 Nic Haynes.