Typical Mountain Bike Gear Ratios

Since the amount of oxygen is reduced riders find that an easier gear combination accommodates the ability to produce power for longer periods of time without tiring as quickly.

Typical mountain bike gear ratios. Range from 25 to 100 gear inches is enough for 90 of riding. 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. In order to achieve a seamless transition in your climbing gears a 28t ring would get you there. Ratio of the lowest gear of your setup.

Benefit of 2x10 gearing on long climbs. Whereas you ll see bikes with two front chainrings abbreviated to 2x. Therefore on a 26 rohloff bike you can get as low as 15 95 and on a 700c bike you ll get 19 102. Therefore a 26 8 speed bike will have gears as low as 26 79 and a 700c bike will go as low as 27 84.

The most common gear configurations for modern mountain bikes include one or two front chainrings. A 26 11 speed bike will have gears as low as 26 105 and a 700c bike will go as low as 27 111. Shows table of all possible chainring sprocket combinations with gear ratio. A typical cassette will have a range of sprockets from 12t 25t or 11t 36t.

The minimum gear ratio you can use with a shimano hub is 1 9 1. Mtb cranks with 22 teeth small. Moving your mouse over the ratio will show speed you will achieve by pedaling at 100 rpm. Gear ratios below 2 are considered small size gears gear ratios between 2 and 3 and considered mid size gears gear ratios greater than 3 are considered large size gears.

The minimum gear ratio you can use with a rohloff hub is 2 5 1. Basic reference gear inch points are. Gear inch comparison you can see the climbing gear ratios are close between the two systems. Bikes with single front chainrings are referred to as 1x or one by.

More and more downhill bikes are beginning to favour the new standard of 27 5 650b wheel sizes which needs to be considered when selecting your gear ratios. 20 gear inches for really low gearing needed for climbing steep off road ascents. Above 100 gear inches is good for flat paved roads with strong wind at the back. For example a shimano ultegra cassette is available in 11 23t 11 25t 12 25t 11 28t and 11 32t configurations so you can really fine tune your gearing.

Ratio of the highest gear of your setup. If you re concerned with optimizing performance and don t want to give up gears on the climbs or descents then 2x10 is likely the better choice for you. In order to run that ring you are going to need a direct mount crankset.