Bicycle Gear Design

Brief instructions: use the pulldowns to select your desired chainring and cassette range. Fill in the "pinned cogs" boxes with the cassette cogs that can't be changed because they come as a unit. Click on "Next" and "Previous" to navigate among solutions. Fiddle the "importance" sliders to see different setups based on your preferences. See the full instructions for more information.

Number of Chainrings:
Number of Cogs in Freewheel/Cassette:
Chainring(s): to
Freewheel/Cassette Range: to
Wheel Size:
 
I never use the big chainring and the big cog together:
I never use the small chainring and the small cog together:
Show metric gear numbers (development):
 
Pinned cogs:
 
My manufacturer doesn't make these cogs:
 
Irregularity Importance:
1
Irregularity Importance Boost:
2
Second Irregularity Importance:
1
Second Irregularity Importance Boost:
2
Shift Pattern Importance:
1
Shift Pattern Importance Boost:
1
Duplicate Importance:
2
Duplicate if Less Than This Percentage Jump:
2.5
Maximum Cog-to-Cog Gap:
6
Time Limit on Calculation (0 = no limit):
60 

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