I am a big fan of Sheldon Brown’s gear calculator page. Sheldon Brown’s gear calculator script allows you to calculate gearing ratios, gear-inches, and speed for given cadences. After using it over the course of several years now, I found myself wanting something that would allow me to adjust the values dynamically and compare multiple different setups at once. I threw together a little app to scratch my itch using Angular.js. Hope this is useful to someone else out there.
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Cogs(single {{ cogs[0] }}t) {{ cogs.length}}x {{ cogs[0] }}-{{ cogs[cogs.length-1] }} Choose |
Chainrings |
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| {{ (getGearInches(chainring, cog) | fixed:1) || '' }} | {{ (getDevelopment(chainring, cog) | fixed:1) || '' }} |
{{ (getSpeedMph(chainring, cog, 1) | fixed:1) || '' }}, {{ (getSpeedMph(chainring, cog, 1.5) | fixed:1) || '' }}, {{ (getSpeedMph(chainring, cog, 2) | fixed:1) || '' }} |
{{ (getSpeedKph(chainring, cog, 1) | fixed:1) || '' }}, {{ (getSpeedKph(chainring, cog, 1.5) | fixed:1) || '' }}, {{ (getSpeedKph(chainring, cog, 2) | fixed:1) || '' }} |
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Awesome. Thanks!