Mike's Bicycle Gear Calculator

Title
Cassette








Required Rear Derailleur Capacity:

Chainrings Wheel Crank



Required Front Derailleur Capacity:


Semi-Log Graph

Sheldon Brown's Gain Ratio Chart

Rollout Table     Inches Meters

This program is a work in progress
Please send comments or suggestions to:
mike.sherman@earthlink.net

Thanks to Sheldon Brown for wheel diameter data and his gain ratio method
Thanks to speed@etecnw.com (Paul W. Laudon x7241 (sun)) - whoever you are
for a C program posted on 17 Aug 1994 23:21:36 GMT on rec.bicycles.tech
My C program used it as a starting point. That was followed by a perl cgi program
and later this javascript program

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