Single Speed Mountain Bike Gear Ratio Chart

Shows table of all possible chainring sprocket combinations with gear ratio. Colors group similar values. If you had to change to 30t chainring on the sram drivetrain you would achieve similar gear ratios as the shimano xt of 30 42 0 714 and 30 10 3 000.

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Know that this value does depend on wheel size.

Single speed mountain bike gear ratio chart. I rode some trails for the first time with my bike and i was dying. Ratio of the lowest gear of your setup. A smaller number is easier to accelerate and can still be pushed on steep climbs. A sram 10 42 cassette has a very similar gear range but with a 32t chainring the lowest gear has a ratio of 32 42 0 762 and the highest gear has a ratio of 32 10 3 200.

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. I want to get use to riding a good gear ratio for trails and maybe eventually race. Here s a simple way to think about gear inch combinations.

Im not sure if i should stick with it and toughen up or lower the ratio. Using a gear inch chart is one way to compare gear ratios without riding the bike. I ride my single speed with a 32t chainring 14t cog. 80 is green 50ish 80 blue and below 50 red.

3 is green 2 3 blue and below 2 red. The starting point for most folks and possibly the most commonly thrown about catch phrase in single speeding is 2 1 which refers to a common gearing ratio or in other words a gear combo wherein the chain ring front gear has twice as many teeth as the cog rear gear 32 16 being a very common variation. To keep things simple let s look at just 29ers. Ratio of the highest gear of your setup.

Colors group similar values. An intro to bike. What gear ratio do most single speed mtb racers use. For one revolution of the pedal your bike will travel a certain number of inches.

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.