| Evolution of bicycle commenced in 1818 with push | | | | mail delivery, used by military for troup |
| bikes or hobby horses which were like a wooden | | | | movement, and it also became a source of |
| frame supported by two in-line wheels and the | | | | recreation. |
| rider used to push it with his feet while navigating | | | | With an advent of technology and modern |
| the front wheel. Then in 1839 it was refined, as a | | | | materials, various types of bicycles are launched in |
| mechanical crank drive was added to the rear | | | | the market. There is a range of utility bicycles, |
| wheel. | | | | racing bicycles, mountain bicycles, BMX bicycles |
| A new design of bicycle marked its beginning in | | | | and many more. One can select the type of |
| 1850s and 1860s when Frenchmen Pierre Michaux | | | | bicycle according to his requirement in terme of |
| and Pierre Lallement placed pedals on an enlarged | | | | functions, number of riders, etc. |
| front wheel. It was made of wrought iron and | | | | A rider rides the bicycle by keeping it upright so |
| wood with mounted wire spiked wheels with solid | | | | that the centre of gravity remain on its wheels. |
| rubber tires on a tubular steel frame. But this | | | | He leans while taking a turn by turning the |
| designed faced problem of very high seat and | | | | handlebars with his hands. He uses brakes in order |
| uneven distribution of weight. | | | | to stop, as the brakes applies stopping force to |
| Subsequently, these problems were solved to | | | | the front wheels. It is the most energy-efficient |
| some extent by reducing the front wheel | | | | means of transportation, as it requires very low |
| diameter, adding gears to attain enough speed, | | | | energy to ride in a slow speed and transmits |
| setting the seat in the middle, etc. But it faced | | | | 99% of energy of a rider to the wheels. |
| major problem with the front wheel, as both | | | | With an influx of technology and innovatios, the |
| pedal and steer were attached to it. Then J.K. | | | | designing of bicycles has remarkably changed. |
| Starley, J.H. Lawson and Shergold connected the | | | | There are different models for men and women, |
| pedals with the back wheel with chain drive | | | | racing and ordinary rides, cargo carriers and circus |
| system to reduce the problem. Those bicycles | | | | use. Each model has its own unique features in |
| were given a name of safety bicycles or dwarf | | | | order to meet the exclusive requirements of the |
| safeties, as they had lower seats with equal | | | | rider like gears for racing riders, cushioned saddles |
| distribution of weight. | | | | for short distance riders, disc brakes for off-road |
| Golden age of bicycles began in 1890s, since new | | | | riders, etc. |
| innovations made these bicycles more | | | | The use of bicycle has not only improved man`s |
| comfortable. Pneumatic tire was an invention of | | | | day to day life, but also contributed for better |
| Scotsman John Boyd Dunlop in 1888 and then | | | | environment because cycling doesn`t cause |
| only freewheel was developed. Subsequently, | | | | polllution. Moreover, it has positive effects on |
| coastal brakes were invented in 1898. This period | | | | one`s health. Manufacturing of bicycles has led to |
| also marked the introduction of derailleur gears | | | | the deveopment of other industries also like |
| and hand operated cable-pull brakes. Soon it | | | | composition of ball bearings, sprockets, washers, |
| became world wide famous due to its high utility | | | | etc., as many companies make frames of bicycles |
| in alsmost every field. It was used in India to | | | | and buy other parts from other companies. |
| distribute milk in houses, used by postman for | | | | |