The gears in your best mountain bikes just keep getting more and more intricate. The bikes of today have as many as 27 gear proportions. A mountain bike will use a combination of 3 different sized sprockets in front and 9 in the back to produce gear proportions.
The idea behind all of these gears is to permit the rider to crank the pedals at a unceasing pace no matter what sort of slope the bike is on. You can understand this better by picturing a bike with simply a single gear. Whenever you revolve the pedals one turn, the rear wheel would rotate one turn as well (1:1 gear ratio).
If the rear wheel is 26 inches in diameter, then with 1:1 gearing, one full twist on the pedals would lead to the wheel covering 81.6 inches of ground. If you are pedaling at a speed of 50 RPM, this implies that the bike can cover over 340 feet of ground per minute. This is only 3.8 MILES PER HOUR, which is the equivalence of walking speed. This is perfect for climbing a steep hill, although bad for ground or heading downhill.
To go quicker you are going to require a different ratio. To ride downhill at 27 Miles per hour with a 50 Rpm intonation at the pedals, you'll need a 5.6:1 gear ratio. A bike with lots of gears will give you a sizeable number of increments between a 1:1 gear proportion and a 6.5:1 gear ratio so that you can always pedal at 50 Rpm, regardless of how fast you are going.
On a standard 27 speed mountain bike, 6 of the gear ratios are so close to each other that you can't notice any difference between them. With real use, cyclists tend to choose a front sprocket OK for the slope they are riding on and stick to it, though the front sprocket can be difficult to shift under heavy load. It's much simpler to shit between the gears on the rear.
If you are cranking up a hill, it is often best to select the tiniest sprocket on the front then shift between the nine gears available on the rear. The more speeds you have on the back sprocket, th e bigger advantage you will have.
All taken with all, gears are important to mountain bikes as they dictate your overall speed. Without gears you would not be able to build speed nor would you be well placed to pound pedals. The gears will move the pedals and help you to build up speed.
There are all types of gears available in mountain bikes, all of which will assist you in building up a lot of momentum if you use them the proper way.
The idea behind all of these gears is to permit the rider to crank the pedals at a unceasing pace no matter what sort of slope the bike is on. You can understand this better by picturing a bike with simply a single gear. Whenever you revolve the pedals one turn, the rear wheel would rotate one turn as well (1:1 gear ratio).
If the rear wheel is 26 inches in diameter, then with 1:1 gearing, one full twist on the pedals would lead to the wheel covering 81.6 inches of ground. If you are pedaling at a speed of 50 RPM, this implies that the bike can cover over 340 feet of ground per minute. This is only 3.8 MILES PER HOUR, which is the equivalence of walking speed. This is perfect for climbing a steep hill, although bad for ground or heading downhill.
To go quicker you are going to require a different ratio. To ride downhill at 27 Miles per hour with a 50 Rpm intonation at the pedals, you'll need a 5.6:1 gear ratio. A bike with lots of gears will give you a sizeable number of increments between a 1:1 gear proportion and a 6.5:1 gear ratio so that you can always pedal at 50 Rpm, regardless of how fast you are going.
On a standard 27 speed mountain bike, 6 of the gear ratios are so close to each other that you can't notice any difference between them. With real use, cyclists tend to choose a front sprocket OK for the slope they are riding on and stick to it, though the front sprocket can be difficult to shift under heavy load. It's much simpler to shit between the gears on the rear.
If you are cranking up a hill, it is often best to select the tiniest sprocket on the front then shift between the nine gears available on the rear. The more speeds you have on the back sprocket, th e bigger advantage you will have.
All taken with all, gears are important to mountain bikes as they dictate your overall speed. Without gears you would not be able to build speed nor would you be well placed to pound pedals. The gears will move the pedals and help you to build up speed.
There are all types of gears available in mountain bikes, all of which will assist you in building up a lot of momentum if you use them the proper way.
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Want to find out more about mongoose sector mountain bicycles and the way in which the gears work? Come and visit http://www.bestmountainbikesreview.org/to read complete review about mongoose mountain bikes.
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