2014年1月5日星期日

Part of the bicycle

In 1888, Ireland's veterinary Dunlop, get inspiration from healing cow stomach gas expansion, he spent in home garden Folding electric bikes rubber and glued into round, play enough gas, mounted on bicycle wheels, to ride a bike race, incredibly, aroused people's great interest. Pneumatic tire is a landmark in the development history of the bicycle in the world, it increases the flexibility of the bicycle, won't because the road is rough and vibration; Greatly increased the speed at the Three wheel bikes time, reduced the wheels and road surface friction. So, it is fundamentally changing the bike ride performance, perfect the use function of the bicycle. Therefore, since the end of the 18th century, until the beginning of the 20th century, the invention of the bicycle and improvement, through about 200 years, there are many to strive for, to evolve into the style of this ride freely now.
Of a bicycle
(1) body parts: including frame, front fork, handlebar, saddle and front fork fitting and so on, is the main part of the bicycle.
(2) transmission parts: including the pedal, crank, sprocket, chain, axial and flywheel, etc., by human pedaled pedal, drive a drive wheel rotation, through the above drive forward.
(3) action part: front and rear wheels, including front axle parts, spokes and rim (circle), tires, etc.
(4) safety device: including brake (brake), car lights, bell, reflectors, etc.

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