When learning how to calculate gear ratios you can either use or tech ratio calculator online or use the gear ratio formula. This formula is Gear Ratio = RPM X Tire Diameter (inches
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Divide the number of teeth on the pedal gear by the number of teeth on the wheel gear. If you have multiple gears to choose from, you then have multiple ratios. If you are talking
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The following is how I would work it out. I have used SI units as I live in Europe  the principle is the same for those using other units of measurement. I'm not claiming any degree
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