Bicycle Gear Ratio Chart Inches

20 24 26 700c 27 650b 29 tyre dia.

Bicycle gear ratio chart inches. 3 is green 2 3 blue and below 2 red. Gear inches is one of several relative measures of bicycle gearing giving an indication of the mechanical advantage of different gears. The distance in inches covered by the rear wheel for one full turn of the pedals roughly speaking for a detailed explanation click on the link from at the beginning of this sentence. You can see that with every combination of chainring in the front and cog in the back you can get close to 45 gear inches.

You can use a chart to find the gear inches for you bicycles gear combinations. This depends on the ratio between the number of teeth of the front and rear chainrings as well as. Colors group similar values. 0 20 mm 23 25 28 32 35 38 44 50 56 1 00 in.

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. Hover over the cells to highlight and see the gearing information. Colors group similar values. Using the bicycle gear inch chart highligted in yellow on the chart are combinations that are about 45 gear inches.

Values for gear inches typically range from 20 very low gearing via 70 medium gearing to 125 very high gearing. As in a car low gearing is for going up hills and high gearing is for going fast. Add mm if required. Bicycle gear size and cadence speed calculator wheel size.

Complete bicycle gear ratio chart here is a complete bicycle gear ratio chart of the most commonly used bicycle chainring and cog sizes. Gear ratio is usually expressed in gear inches i e. The selection of cassettes is up to date as of february 2018 for shimano sram sunrace and recent campagnolo models.