Bicycle Gear Ratios Chart

The original calculator page is here.

Bicycle gear ratios chart. Cadence needed for a given speed in a range of gears. 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. Colors group similar values. For example there are are six chainring and sprocket combinations that will provide 5m of roll out.

A larger number indicates a large gear that is harder to turn over and is used for higher speed. 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. Here you can calculate.

It can be used to compare different setups to find the optimal gearing for all kinds of bicycles. The bicycle gear calculator displays graphically the gearing of derailleur gears and gear hubs. Speed at cadence in a range of gears. Shows table of all possible chainring sprocket combinations with gear ratio.

3 is green 2 3 blue and below 2 red. A smaller number is easier to accelerate and can still be pushed on steep climbs. 80 is green 50ish 80 blue and below 50 red. Gear ratio s in the bike gear ratio chart are determined by dividing the number of teeth on the front chainring by the number of teeth on the rear cog.

Complete bicycle gear ratio chart here is a complete bicycle gear ratio chart of the most commonly used bicycle chainring and cog sizes. The selection of cassettes is up to date as of february 2018 for shimano sram sunrace and recent campagnolo models. Hover over the cells to highlight and see the gearing information. Colors group similar values.

Enter the wheel size tire size number of chain rings number of teeth select a cassette size and optionally the individual cogs and this tool will help you figure out how much easier or harder your gearing will be if you switch it or buy a new bike with different gearing that your current bike.