Appleblock: Cycle Designs and Ideas > web tools

half-step gearing cog and chainring designer - now with fancier graphics

Page created April 24, 2010 by Garrett Belmont, with infographics advice from James Black.

Technical issues: Only works in Google Chrome!

Wheel diameter (inch). 27 works well for 700c (700x32), and 26 for 650b.
Smallest cog (teeth)
Ratio jump (percent). If 10 is desired, experiment by trying 9.5 or 10.5.
Approximate highest gear inch

   
     
     
     
     
5 speed
     
6 speed
     
7 speed
     
8 speed

It will be here that one can hit SUBMIT to be sent to Mike Sherman's site with chainrings and cog set in place.

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