Information of bicycle in modern embryonic stage

Bicycles have been in existence for many years, and for the development of bicycles, it is also a gradual change. Now let's understand that bicycles in the embryonic stage of modern information, the real modern form of bicycles was born in 1874. For a year in 1874, Rorson, an Englishman, ingeniously mounted chains and sprockets on his bicycle, using the rotation of the rear wheels to propel it forward. But the front wheel is still big and the rear wheel is small. It looks inconsistent and unstable.
In 1886, John K. Stally, a mechanical engineer from England, designed a new bicycle style from the mechanical and kinematic point of view. He fitted the front fork and the brake with the same size of the front and rear wheels to maintain balance. He made a diamond frame out of steel pipes and used rubber wheels for the first time. Stally not only improved the structure of bicycles, but also made many machine tools for bicycle parts, which opened up a broad prospect for the mass production and application of bicycles, so he was called the "father of bicycles" by later generations. The bicycle models designed by star are basically the same as today's bicycles.
In 1888, Dunlop, a veterinarian in Ireland, was inspired by the treatment of bull stomach inflammation. He glued the rubber hose used to water the garden in his home into a circle, filled it with air, mounted it on a bicycle wheel, and went to the top of the cycling race, which aroused great interest. Pneumatic tire is an epoch-making initiative in the history of bicycle development. It increases the elasticity of bicycle and does not shake because of uneven road surface. It also greatly increases the speed of driving and increases the friction between the wheel and road surface. In this way, the riding performance of bicycles has been fundamentally changed, and the use function of bicycles has been perfected.
Also in 1888, John K. Stally of Coventry, England, produced the first modern bicycle, the "safe" bicycle. Its main feature is the use of diamond frame structure, so that the body has a higher stiffness and strength, the rear wheel is driven by chain, and through the front fork directly to grasp the direction.