How Do Bicycle Gears Work?

“An avid cyclist must know how bicycle gears work” – Pro Bikers

To derive the unmixed fun out of cycling, you must know how bicycle gears work. Gears are not the chain rings at the center of the pedal bars and the sprocket or cogs in the rear wheels. Gear means the speed a bike runs at. The bike with multiple chain rings and cog wheels can catch up multiple speeds when on the move. The bike chain snakes over a back gear and front gear simultaneously and catches up newer speeds shifting to the next pair of chain ring and cog.

How many gears may a bicycle have?

Bike Gears

The modern bicycle has multiple gears because now a day uses bike reach a wild variety. Mountain bikes generally do have multiple gears to go up hills and downhills.

A bicycle gears range from 1 to 27. Let’s be clearer by knowing the speeds or gears of bike specifically. Bikes feature different speeds or gears that include 1, 3, 18, 21, 24, and 27 gears. There were two more gears but they are now not in the vogue. So when we say low gear it refers to the low number and if we say high gear we refer to the high number mentioned above.  These numbers are crucial to understanding properly how do bicycle gears work.

When the gear needs to work or a gear shift do is urgent?

To be well aware of the fact about how do bicycle gears work, you must know when gears need to work or shift. Gearwork is meant to be gear shifting that is to change gear from one wheel to another. It may be to shift to a bigger one or to jump down into a smaller one.

You can handle both siftings by using the gear shifters on or below the handlebars. Bikes offer two shifting that refers to down shifting and up shifting or shift down or shift up. You can refer them to gear down or gear up as well. Shift up will give you a controlled pedaling and shift down will enable the bike move fast.

How do bicycle gears work at Uphill and downhill?

Bike Riding Uphill Outlifegear

We have got the numbers and terminology clear. Now, it’s time to learn how the gears work. You need to shift down when there is a climb ahead. To go upwards you need to pedal hard and to pedal hard or fast you must shift to the bigger front chain ring and smaller rear cog. By the time the bigger chaining will make a turn, the smaller cog or sprocket will turn thrice by then and the cycle will go fast forward.

To come out more clearly, suppose the front chaining has 51 teeth and the rear sprocket has 17 teeth. When the front gear completes a round, the rear gear will finish three rounds by the same time driving the wheel triple faster. This is all to an all-round answer to how do bicycle gears work while climbing up.

The converse happens when we need to slow down the pace. If we squeeze the right shifter, the chain will snake around the pair of smaller front chain ring and the bigger back cog. In this case, the front gear needs to move thrice to move the back cog once. Thus the cycle will be on a slow pace. Shifting up is required when you go downhill or a turn and slope is approaching or we need to halt at somewhere.


Know how of the gear function is a must if you want to be an avid cyclist. This article and a bit of practice will enable you to derive all the fun an off terrain biking offers.

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