bicycle-tools

A collection of formulas for gearing calculations

Usage no npm install needed!

<script type="module">
  import bicycleTools from 'https://cdn.skypack.dev/bicycle-tools';
</script>

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.