Gear bicycles are fast becoming the norm and rightfully so for the utility that they offer. Gears modify the speed, direction, and the power of the bicycle, allowing you to easily scale any climb and speed through long stretches. But how do gears help and why do you need more than one? The speed changes with the order of the number of gears. Thus, the first gear is a low gear with generally lower torque, and the twenty-first gear is a higher gear. A basic bicycle has only one gear ratio, which is a compromise between easy pedalling and higher top speed. Adding more gears makes it easier to pedal the bicycle going up a hill when you use the lower ratio gears. Using higher gear ratios on the other hand, while compromises on power, allows you to go much faster. Gears allow you to switch between torque and speed depending on your needs, offering a level of utility that nothing else can. Bicycle gears start from one and go up to 27, with each gear offering incremental improvements to the speed or power depending on whether you have shifted up or down. You need gears that are low enough for going up some tough hills, and gears that are high enough let you continue pedalling when going down gentle inclines. Typically bicycles with more gears offer a wider range of action than one with fewer gears. However, know that you may not need the widest gear-range possible. You just need enough of a range. If the topology in your area is forgiving, you might not need multiple gears at all. Gears are a great way to upgrade your bicycle and make it more suitable for different environments. They are an easy replacement to make, so if you’ve already got a bicycle and you’re not happy with the gear range, you don’t have to get a whole new bike. Dr.Cycle has a vast range of bicycle gears to offer that are suitable for every need.