The traditional 28 bicycle is named after

The traditional 28 bike gets its name from the fact that the wheels are 28 inches in diameter.

A popular vehicle in the 1960s and 1970s that can carry smaller amounts of cargo.

Whether on the road in the city or on the dirt roads in the countryside, you can see "28" bicycles loaded with people or goods everywhere.

"28" bicycles became an indispensable means of transportation and transportation for every household in that era.

People often say that the "errand" in the "errand" bicycle refers to the wheel diameter of 28 inches, one inch = 2.53995 centimeters, and 28 inches = 71.1186 centimeters.

By the 21st century, due to the rapid development of society, bicycles are no longer just a means of transportation, people also use them as a fitness tool.

Principles of Bicycles 28. Among the 25 components of a bicycle, including the frame, tires, pedals, brakes, and chains, the basic components are indispensable.

Among them, the frame is the skeleton of the 28 bicycle, which bears the largest weight of people and cargo.

According to the working characteristics of each component, it can be roughly divided into guiding system, driving system and braking system.

First, the guidance system: consists of handlebars, front forks, front axles, front wheels and other components.

The rider can change the direction of travel and maintain balance by manipulating the handlebars.

Second, the drive (transmission or walking) system: consists of pedals, bottom bracket, crankset, crank, chain, flywheel, rear axle, rear wheel and other components.

The pedaling force of human feet is transmitted through the pedals through cranks, sprockets, chains, flywheels, rear axles and other components, thereby making the 28 bicycle continue to move forward.

Third, the braking system: It is composed of brake components. The rider can control the brake at any time to slow down and stop the moving bicycle to ensure driving safety.