Mountain Bike Gear Ratio Comparison

Next look at the top speed available with your largest gear biggest gear inches and decide if this is fast enough. Know that this value does depend on wheel size. How to choose the right gear ratios for your road bike gear ratios can make or break your ride so choosing the right ones for you is vital to getting the most out of cycling.

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My main passion on a bike is long steep low gear grinding hills think of grinding up the face of aspen mountain on summer road.

Mountain bike gear ratio comparison. Ratio of the highest gear of your setup. Your cranking along with your 2 10 front chain ring 38 big ring rear cog 21 6th gear yielding a ratio 1 81. 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. Colors group similar values.

Ratio of the lowest gear of your setup. Moving your mouse over the ratio will show speed you will achieve by pedaling at 100 rpm. 3 is green 2 3 blue and below 2 red. An intro to bike.

Here is a complete bicycle gear ratio chart of the most commonly used bicycle chainring and cog sizes. This is comparable to your 1 10 front 30 rear cog 16 4th gear ratio 1 875. Shows table of all possible chainring sprocket combinations with gear ratio. 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.

That being said my granny gear ratio is really important to my getting into a groove or trance while climbing. You come around a turn their in front of you is a steep windy climb replete with bare slippery tree roots. Hover over the cells to highlight and see the gearing information. Here s a simple way to think about gear inch combinations.

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. Using a gear inch chart is one way to compare gear ratios without riding the bike. Also shown is the change between gears in the cassette. I am 53 now so i m old and set in my ways.

For one revolution of the pedal your bike will travel a certain number of inches. Max speed shown is assuming a cadence of 100. To keep things simple let s look at just 29ers. For a mountain bike off road a top pedaling speed in the low 20s is usually more than enough.

I ve been a mediocre mountain biker for 20 years.