Mountain Bike Gear Ratios Explained

The distance covered in the lowest gear with a 34t chainring and a sram eagle drivetrain on a 29er is about 1 57 m per crank rotation and on a 27 5 bike with a 36t chainring one crank rotation gets you 1 58 m. This allows us to compare gears across a wide range of wheel sizes for example comparing an average 29er bike to an average 26in wheeled bike with exactly the same gearset the 29er will feel about 10 11 percent harder to pedal. Comparing gear ratios with all of the options available to today s road cyclists it is possible to produce gear ratios that are as small as 1 0 and as large as 5 0 with increments of 0 15 0 40.

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Welcome to our site! Here we have a plenty of mountain bike gear ratios explained for you as your basic idea in your next Action! Feel free to download the image and use it as your guideline. However, the free mountain bike gear ratios explained images provided below is not given in a detailed manner.

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A 32 tooth chain ring with a 16 tooth sprocket gives you a 32 16 ratio or 2 1.

Mountain bike gear ratios explained. The highest gear ratio on the bike might be a front chain wheel with 44 teeth and a rear gear having 11 teeth. The bigger the gear range of the cassette with the same amount of gears the bigger the steps between gears. The one or two refers to the number of chainrings on the front of the drivetrain while the second number 10 or 11 refers to the number of cogs on the cassette in the rear of the drivetrain. On a typical mountain bike one gear is about 10 percent higher or lower than the next and given the variability of terrain.

Multiplying the gear ratio by the wheel diameter gives us a number called the gear inch. Two common choices among mountain bike riders are the 1x11 and the 2x10. Planetary gears explained truvativ hammerschmidt and hub gears. The gear ratio can be calculated by the gear you re in using the number of teeth on the front chain ring and the number of teeth on the rear sprocket.

That creates a 4 to 1 gear ratio. At a 60 rpm pedaling rate the speed of the bike is 18 5 mph 30 kph. With 26 inch wheels the bike moves forward 326 inches with each pedal stroke.