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Freewheel Bike Bmx
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In this society developing at an accelerating tempo, there are various kinds of transportation modes such as cars, buses, trains, planes, boats, and even helicopters, etc. These transportation vehicles really bring a lot of convenience to people. The development of transportation enables people to go from one place to another in a little time. But transportation modes like planes and trains are suitable for long distance, and what vehicle is fit for the short distance? The answer is a bicycle.
A bicycle is a pedal-driven, human-powered, single-track vehicle, having two wheels attached to a frame, one behind the other. It is also called a bike, pushbike or cycle. Apart from ordinary two-wheeled bicycles, there are also other kinds of cycles such as unicycle, tricycle, quadracycle, etc. whatever kind it is, a cycle is quite important transportation mode in China as well in the whole world.
Obviously, bikes are very popular in today's society. Do you know the history of bicycles? Actually, bikes have very long history. They were introduced in the 19th century. By developing precursor human-powered vehicles, many innovators contribute a lot to the development of this transportation mode. In the early time, today's modern bicycle is called hobby horses, or push bikes. In some places, sometimes they are still called push bikes.
The basic shape and structure of a typical upright bicycle has changed little since the first chain-driven model was developed around 1885. Being the first human means of transport to make use of the two-wheeler principle, the draizine invented by the German Baron Karl von Drais, is regarded as the forerunner of the modern bicycle. This bike was introduced by Drais to the public in Mannheim in summer 1817 and in Paris in 1818. Later, some French inventors developed the bikes according to their own ideas and they added many details to them. And in 1888, the first practical pneumatic tire was introduced by a Scotsman John Boyd Dunlop. After that, the rear freewheel was developed, too. These all make the invention of 1898 coaster brakes become reality. At the later time, with the development of bikes, racing became widely popular in many countries.
It is no doubt that the invention of the bicycle has had much effect on our society. For example, many mechanical components were come out with the development of these bikes such as ball bearings, chain-driven sprockets, gears, and wheels, etc. Compared to other vehicles, bikes are more environmental friendly, if you just go a short distance, it is very wise to choose bikes as your transportation mode.
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Practical Uses For Single Speed Bikes
There has been a growing movement toward single speed bikes for a number of reasons. At a glance, they may not seem like a great choice. Given the simplicity of the bikes, with no opportunities to switch gears, they may not seem ideal. However, if, as a consumer, you consider exactly why you are buying a bike, and when and why you will be riding your new bike, you may find that the single speed bikes are exactly what you are looking for.
Uses
Single speed bikes have been use for years under various circumstances. Children's bikes are almost always single speed bikes. BMX bikes and dirt bikes are single speed as well. Track bikes and cruiser type bicycles (wider bikes with ballooned tires and wide, padded seats) are single speed bikes. They are also used for training for bike racers, because riding a single speed bike is said to improve a rider's pedaling technique.
It can make an excellent commuter bike for work or school, when the terrain is predictable and constant, and there are few environment challenges, like ditches to jump and streams to ford.
Advantages
The simplicity of single speed bikes is a huge draw both for sportsmen and commuters. BMX riders and stunt cyclists, for example, only use first gear anyway, so they do not need the extra gears, and when there is a fall or an accident, there are fewer parts to break or need replacement.
For the commuter, the simplicity is still a draw. Time and money are both of the essence for most of us, and with a simple brake construction and only a single gear, care and maintenance are much cheaper and simpler.
Single speed bikes are generally lightweight and easy to handle. Commuters may need to carry their bikes into the workplace, or up a flight of steps, indoor or outdoor. With a lightweight bike, this is not difficult, even in a suit. The lightweight construction also improves maneuverability in case of an unexpected pothole or pylon.
The overall efficiency of the driveline is also an advantage. Without the complicated gear system of a freewheel bicycle, and with a straight chainline, efficiency is greatly improved overall; the ride is less stressful for the rider and less wear on the bike.
Disadvantages
Because of the inability to shift gears, the single speed bikes are simply less versatile. They are not ideal for mountain biking, riding up and down steep hills or biking cross country, when conditions may change and make multiple gear choices ideal.
It will be slower than a multi-speed bicycle, because a multi-speed bike can reach a point at which the wheels are turning faster than the cyclist is pedaling; this point is not reached on a single speed bike.
SE 700C Series
The new SE 700C series of single speed bikes offers a variety of looks and styles from which to choose. Aluminum and alloy frames add to the ease of maintenance and lightweight structure that make single speed bikes so desirable.
About the Author
Fixed gear <a href="http://www.2wheelbikes.com/Fixed-Gear-Road-Racing-Bikes.html">700C Bikes</a> and single speed bikes available at 2 Wheel Bikes. Buy Factory Direct and get great deals and save money. For details visit http://www.2wheelbikes.com/Fixed-Gear-Road-Racing-Bikes.html
HELP WITH BMX FREEWHEEL?
I need help. Im fixing my BMX bike and i have the pedal brakes. I hate it and i want freewheel. Is there any way i could fix my backrim or sprocket so i could make it freewheel?
It will cost less to buy a new bike than to substitute a freewheeling hub for a coaster hub, and add the necessary rim brakes.
If you took the hub apart and butchered the brake cones you might be able to disable the brakes, and the crank could spin without moving the rear wheel. But , believe it or not, the coaster brake hub is a precision mechanism, almost like a wristwatch. Once disassembled, they can be a real mess to put together. So instead of a bike that freewheeled, you would probably have a bike that didn't work at all.
All fired up for the big event
For many Thais, a match in the English Premier League football can be something to talk, or even brag, about for an entire week. Well, I'm also happy for Liverpool or Manchester United every time they win. But when Thai downhillers grab the top places in the 17th Asian Mountain Bike Championships held recently in Suzhou, China - now that's what I call a big deal!
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