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The Parts of a Bicycle

A bicycle is a simple, machine, but itMultiple gears on a bicycle helps change
involves a lot of mechanization. Athe distance the bicycle moves forward
bicycle is made up of many parts putwith each stroke of the pedal. A
together. Perfect synchronization in themountain bike has 24 gears. Chain wheels
functioning of all the parts isare the gears at the front. Most bikes
essential for the efficient working ofhave 2-3 chain wheels. The freewheel, at
the bicycle. Modern day bicycles includethe rear, has 5-9 gears on it. It spins
many new elements, but a standardfreely in one direction and locks in the
bicycle has the same main parts. Theother. This enables the bike to coast,
basic parts of a bicycle comprise; thewhen not pedaling. There are front and
frame: A bicycle's frame is made up ofrear derailleurs to change the gears.
many tubes welded together. The frontBall bearings in a bicycle serve to
fork holds the front wheel and isreduce friction. Ball bearings are found
movable.in the front and rear hubs for the
The wheels: wheels include a hub, thewheels, the pedals, the fork tube, the
spokes, metal rim and rubber tyres. Thebottom bracket and in the freewheel.
brakes: they include the actuators onThese bearings need to be periodically
the handlebar, brake cables, brake padscleaned and greased. Expensive bicycles
and calipers. The chain and gears: theyhave sealed bearing cartridges that
consist of the front chain wheels, thedon't need lubrication.
rear freewheel, the shift levers on theMaterials used
handlebars and the cables. Other bicycleBicycles need to be strong and
parts include the seat, seat posts,lightweight. Alloy steel is used for
handlebars, handlebar stem, bicyclemaking the frames and fork tubes. The
lights, dynamos, cranks, and pedals.handlebars, seat posts and brake levers
Gears and ball bearingsare made of aluminum alloy. Aluminum
Most racing bicycles have gears. Gearsalloy frames are affordable. Carbon
basically serve the purpose of reducingframes, titanium and advanced steel
the size and diameter of the wheel.alloys frames are also available.
Gears adjust the direction of rotation.



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