Reverse Lookup Gear Chart

Reverse Lookup Gear Chart

V0.9 7 August 2019


Gear Inches

Accuracy +/- (inches)

Show Decimal Gears

Front Sprocket Gear Range

Rear Sprocket Gear Range


Brands / Models
Show Me Gear Options

What you are looking at is a reverse look up gear chart. If you know the gear inches you are looking for (frequently referred to as rollout) this will help identify the right gearing/tyre combo. It’s been an idea floating around in my head for a while, but now it’s finally a reality.

Road Map of features to come

  • Save selections to browser in cookie
  • Simplify/clean up user interface

I hope you find it useful. If you have any feedback just email

Version Updates

V0.9 7 August 2019

  • Added the option to see the Rennen Decimal gear options

V0.8 4 August 2019

  • Add gear range selection

V0.75 3 August 2019

  • Merge Brand and Model filters to simplify the interface

V0.7 2 August 2019

  • Select/Deselect all options in filters

V0.6 1 August 2019

  • Add more tires to bring in line with the full range available on the gear calculator.

V0.5 29 July 2019

  • Built the calculator with basic filtering and a range of tire options.
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