Mountain Bike Disc Brake Kit
A Bicycle’s Anatomy
A human-powered vehicle driven by pedals is also known as a bicycle or cycle for short. It has two wheels which are attached to a metal or in some cases hard plastic frame, one at the front and the other at the back.
The History Of The Bicycle
The first bicycle hit Europe in the 19th century. Presently their number is exceeding one billion throughout the world. They are used as a principal mode of transportation in some areas of the world, especially Netherlands and China. They have also developed as a very popular form of entertainment and recreation. Other fields of human activities that they have been adopted are adult fitness, children`s toys, police and military applications, cycle sports and courier services. Thus over the period of time the humble bicycle has assumed quite a few roles!
The common bicycle and its basic configuration and shape has been altered very slightly since the first model driven by chains was developed back in 1885. However, some subtle details have been made better with the growing use of computer and improvement in material technology. Using modern technologies have made it possible to produce specialized designs for different kinds and uses of cycling.
The Design and Components of a Typical Bicycle
The Wheels – they are the most important part of any vehicle. The initial wheels used a wooden hub with a steel axle, spokes made of wood and an iron tire which is fitted on the outside. The wheels used today have a metal hub, metallic wire spokes, a metal rim to hold the spokes and a pneumatic rubber tire on the outside. Another important part of the wheel are the bearings which allows free movement of the hub on the axle.
The Frame – almost all of the bicycles used today has the diamond frame. It`s made up of two triangles, the front and the rear. The front triangle has the top tube, head tube, seat tube and down tube. Head tube is the part containing the headset of bearing to allow smooth steering, the top tube connects to the seat, and the down tube connects the head tube and bottom bracket. The rear triangle has the seat tube, seat stays and paired chain stays.
The Drivetrain – is made up of the pedals, which rotates the crank arms, which in turn are attached to a sprocket or chain rings which drives the chain and makes the rear wheel rotate.
The Seating and Steering – to make it possible to steer the handlebars will have to be turned and the front wheel follows suit. For seating there are saddles on the top of the frame. The seating can be designed for comfort or to make cycling smoother and faster.
The Brakes – the brakes used in contemporary design of bicycles are either rim brakes that uses pads to compress the wheel from 2 sides and stopping it, internal hub brakes that has the pads inside the hubs or disc brakes. Braking in bicycles is hand-operated by pressing the brake levers installed on the handlebars on either side.
The Suspension – incorporates a system to make the cycling experience smoother.
The Accessories – miscellaneous parts like mudguards to avoid spray from puddles, chain guards to save clothes from oils, kick stands to keep the bicycle upright while parked have become permanent features of a bicycle. Other accessories like front baskets, rear racks, space for head lamp, a pump, helmets, tool kit etc are also available as per ordered.
The function and evolution of bicycles have affected mankind in a bigger way than it seems. It has affected history in both industrial and cultural realms. In the initial years, bicycles and its construction were dependent on the technology that existed; more recently, its technology in turn has given forth ideas in different areas.
About the Author
Which bike is best for you?… http:// mountainbikesmongoose.com
Formula R1 mountain bike disc brake at twohubs.com
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Acerbis Spider Evolution Disc Cover Mounting Kit HONDA CR125R CR250R CRF250R CRF450R $23.99 Machined aluminum flange. Can remove wheel without removing disc cover. Fits up to 270mm discs . Mounting kit and disc are sold separately. Will only work with stock hubs. Will only work with stock hubs. Fits: HONDA CR125R 2002-2007 HONDA CR250R 2002-2007 HONDA CRF250R 2004-2009 HONDA CRF450R 2002-2008… |
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Acerbis Spider Evolution Disc Cover Mounting Kit YAMAHA WR250F WR426F WR450F YZ125 YZ250 YZ250F YZ426F YZ450F $23.99 Machined aluminum flange. Can remove wheel without removing disc cover. Fits up to 270mm discs . Mounting kit and disc are sold separately. Will only work with stock hubs. Will only work with stock hubs. Fits: YAMAHA WR250F 2003-2009 YAMAHA WR250F 2011 YAMAHA WR426F 2002 YAMAHA WR450F 2003-2009 YAMAHA WR450F 2011 YAMAHA YZ125 2002-2011 YAMAHA YZ250 2002-2011 YAMAHA YZ250F 2002-2009 YAMAHA YZ426F 2… |
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KMC Z410 Bicycle Chain (1-Speed, 1/2 x 1/8-Inch, 112L) $7.98 The KMC Z410 Chain is perfect for your BMX or Single Speed bike. The KMC Z410 Chain is a 1/2″ x 1/8″ chain and has 112 Links except the black chain which has 96 Links…. |
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Wald 742 Training Wheels (16-26-Inch) $32.99 The Wald 742 Training wheels provide the stability required to learn to pedal and operate a bike. The pair of training wheels can be installed on any single speed bike with 16, 20, 24, or 26-inch wheels. The sturdy, 5.5-inch diameter wheels boast steel construction with rubber tires for traction. They mount to the bicycle with 3/4-inch stays. Please note: These training wheels cannot be installed… |
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SRAM PG1070 10-Speed Cassette This SRAM PG-1070 MTB Cassette has 10 cogs with their Powerglide tooth shaping to ensure that you get positive shifts in any situation, even under load. With 10-speed for mountain bikes originating in the XX group, it’s no surprise that we’d see it at the X9 level eventually. And while this cassette may not be as flashy or nearly as light as the X-Dome XX cassette, it shifts like its big brother b… |