Mountain Bike Gear Chart

With big hills and fast sprints in races i am not ready to give up ability to climb or sprint for 200 grams i will just eat less.

Mountain bike gear chart. Bear in mind that road cyclocross and hybrid bike sizes tend to be 3 to 4in bigger for riders of the same height something that confuses a lot of riders when looking through bike listings. A smaller number is easier to accelerate and can still be pushed on steep climbs. For one revolution of the pedal your bike will travel a certain number of inches. For a mountain bike off road a top pedaling speed in the low 20s is usually more than enough.

Ratio of the lowest gear of your setup. Next look at the top speed available with your largest gear biggest gear inches and decide if this is fast enough. Also shown is the change between gears in the cassette. A larger number indicates a large gear that is harder to turn over and is used for higher speed.

Max speed shown is assuming a cadence of 100. If you don t need a bailout gear shimano also offer 10 45. To keep things simple let s look at just 29ers. Moving your mouse over the ratio will show speed you will achieve by pedaling at 100 rpm.

40 10 30 7 gain one gear for top end from 11 to 10 you lose about 200 grams of weight and simplify the bike but the chains rings and cassettes wear way faster ask any bike shop and cost more. 3 is green 2 3 blue and below 2 red. Colors group similar values. Here s a simple way to think about gear inch combinations.

An intro to bike. Colors group similar values. Know that this value does depend on wheel size. Ratio of the highest gear of your setup.

Using a gear inch chart is one way to compare gear ratios without riding the bike. The 6 tooth 45 51 bottom gear jump feels much smoother than sram s 8 tooth 42 50 jump too but leaves slightly bigger gaps lower down. Shows table of all possible chainring sprocket combinations with gear ratio.