Mountain Bike Gear Ratios For Climbing
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The gear you re in is a simple ratio of the number of teeth on the chainring to the number of teeth on the sprocket in use.
Mountain bike gear ratios for climbing. The gear system comprises several parts namely cassette derailleurs chain chainset and. You certainly don t want to deplete your energy when climbing steep terrain. The number of gears on your bike is as simple as multiplying the number of front chainrings by the number of cogs in the rear cassette. You can see the climbing gear ratios are close between the two systems.
Although varying between riders in the region of 90 110rpm is. 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 achieve a seamless transition in your climbing gears a 28t ring would get you there.
Gear ratios can make or break your ride so choosing the right ones for you is vital to getting the most out of cycling menu expert road bike reviews and the latest road bike news features and. 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. How many revolutions per minute you turn the pedals. Inseparably linked to choosing gear ratios is the concept of cadence i e.
Thus a bike with two front chainrings and 10 cogs in its rear cassette would have a total of 20 gears. Shows table of all possible chainring sprocket combinations with gear ratio. For mostly climbing i d start with 32 20 and work from there. 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.
Benefit of 2x10 gearing on long climbs many cyclists want lower granny gears for long climbs particularly when training and racing at altitude. It s a good ratio and you can adjust up or down from there. Sure i still walk some sections but it s the best overall ratio for me and my fitness for now. The best mountain bike gear ratio for climbing and descending explained gear ratios explained.
Moving your mouse over the ratio will show speed you will achieve by pedaling at 100 rpm. Ratio of the lowest gear of your setup.