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.
    Share Button