Bicycle Gear Ratio Calculator

Colors group similar values. The bicycle gear calculator displays graphically the gearing of derailleur gears and gear hubs. The selection of cassettes is up to date as of february 2018 for shimano sram sunrace and recent campagnolo models.

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The original calculator page is here.

Bicycle gear ratio calculator. This handy little calculator can tell you that plus many more combinations. Moving your mouse over the ratio will show speed you will achieve by pedaling at 100 rpm. Ratio of the lowest gear of your setup. 20 24 26 700c 27 650b 29 tyre dia.

Shows table of all possible chainring sprocket combinations with gear ratio. 80 is green 50ish 80 blue and below 50 red. Add mm if required. 3 is green 2 3 blue and below 2 red.

Hover over the cells to highlight and see the gearing information. Colors group similar values. 0 20 mm 23 25 28 32 35 38 44 50 56 1 00 in. For each gear ratio.

20 is green 10ish 20 blue and below 10 red. The selection of internal gear hubs in the calculator is complete except for one a few new models whose gear ratios have not been made public and some very rare antiques. What power is required to pedal at different speeds in different gears with and without a headwind. For that gear set what gradient of hill you can climb given your preferred cadence weight and power capabilities.

It can be used to compare different setups to find the optimal gearing for all kinds of bicycles. Ratio of the highest gear of your setup. Bicycle gear ratio comparison calculator how does a 3 9 compare to a 2 10 or 1 11 drivetrain. Colors group similar values.

Here is a complete bicycle gear ratio chart of the most commonly used bicycle chainring and cog sizes. Bicycle gear size and cadence speed calculator wheel size. What speed could you achieve within your cadence range and how many gear inches does the gear equate to. 1 25 1 5 1 75 1 95 2 00 2 10 2 125 2 20 2 25 2 30 2 35 2 40 â ƒother in.