Technically speaking the bicycle is a two-wheeled vehicle to which the movement is stamped by human muscle power. Actually one of the most popular and ecological means of transport that exist in the world. But when you buy one you enter a store and, in front of a multitude of models, here’s rise to doubts: which one to buy? To choose the right bike for our needs is good to know what types there are and what differentiates them. Let’s discover them together with this guide that illustrates the history, characteristics, building elements and existing models.
The main components of your bicycle are those elements that cannot be missing in any model or variant, and are referred to as “structural components”. They are
among the components of your bicycle is the fundamental element: made up of steel tubes of various dimensions (according to the types of bikes) and gathered in the form of quadrilateral, almost like a parallel trapezium with bases. The highest side that connects the steering at the base of the saddle is called the upper tube; the small end, under the steering wheel, it’s called steering tube; on the underside, which connects the tube to the bottom bracket axle hub is called inclined tube; on the opposite side and parallel to that of direction, they say saddle, because just above it is placed the seat. The frame usually carries two forks in the back and one in front;
It is used to determine the direction of travel;
located at the top and rear of the frame, which would support the rider.
circles of equal size, a front line of the front fork rear forks and the other governed by two.
the wheels provided with ball bearings to reduce friction.
wheels, steel wires are fixed to the rim. The rim is mounted on canvas and rubber tire, which contains the air chamber with the valve opening during which pushes air into the interior of the room itself and closing by means of internal pressure, at the time when there pushing more air from the outside;
essential mechanism among the various components of your bicycle and you need to steer the vehicle, as well as to maintain balance while driving.It is composed of the front forks attached to the frame by a quill, the handlebars attached to the tube and screw terminal.
cover the outside of the wheels. There are different types: low pressure, racing type, at normal pressure, etc.
- pedal board
composed of pedals, chain and from the wheel. The latter, fixed right and connected to the crank, function is to transmit the movement to the chain which in turn using some gears, forward it to the rear wheel.
- braking system
it there are several types: jaw crusher, which acts on the outer edge of the wheel rim; with the fork, agent on the inside of the circle and coaster brake. Particular types of brakes are mounted on luxury and racing bicycles. The brake system used is the one attached to the handlebars with manual actuation.
- lighting system
electric bike light is used in dynamo, driven by the movement of one of the two wheels. The light can be white or yellow, posteriorly bicycles must be equipped with red light and a red light reflected. Also the pedals must be equipped with yellow reflected light device. For acoustic signals bicycles are provided by a particular Bell.
Between the various components of the bicycle we also then called secondary elements, which may or may not be present without harming the same functionality of the vehicle. The bicycle accessories are different. We have:
- saddle cover
mostly of skin or leather, on which sits the cyclist
- rearview mirror
placed on the handlebar to see what goes on behind
to protect the rider’s wheel, but above all by the splash of water and mud
- pump or inflator
need to fill with air tires when needed
- chain guard
to protect the rider’s pants and chain grease that soaks
From its origins, the history of this vehicle to pedals has made great progress, especially with regard to technology and materials of the components of your bicycle: modern ones even are increasingly adopting the gearbox, which allows the more rational use of the different relationships between the teeth of the gear driven by the pedals and the rear gear on which is fixed the chain.
This, depending on the road ahead (plain, downhill, uphill), is moved – by special levers operated by the cyclist – over the various toothed pinions of which is provided by the rear wheel hub.
Mostly bicycles are free shooting, that is equipped with a device that allows you to release the motion of the wheels and pedals for which if the cyclist stops pedaling, the bike continues the March as a result of the momentum or force of inertia.
The various accessories that make up the bike are built from specialized factories for each individual item (chains, pedals, saddles, etc.).
The weight of the bicycles range from 15 pounds around than normal to 10/12 of those for street racing, to 7/8 speed bikes on the track. The height and length vary from 50 to 60cm.
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