Bicycle composition

System structure

Among the 25 components of a bicycle, including its frame, tires, pedals, brakes, and chains, none of them are essential. Among them, the frame is the skeleton of a bicycle, which bears the greatest weight of people and goods. According to the working characteristics of each component, it can be roughly divided into guidance system, driving system, and braking system:

1. Guidance system: composed of handlebars, front forks, front axles, front wheels, and other components. Riders can change the direction of travel and maintain body balance by manipulating the handlebars.

2. Drive (transmission or walking) system: composed of components such as pedals, center axle, toothed disc, crank, chain, flywheel, rear axle, rear wheel, etc. The pedal force of a person's foot is transmitted through components such as cranks, sprockets, chains, flywheels, and rear axles, thereby driving the bicycle forward continuously.

3. Braking system: It is composed of brake components, and the rider can control the brake at any time to slow down and stop the running bicycle, ensuring driving safety.

In addition, for safety and aesthetics, as well as practicality, components such as headlights, brackets, and car bells have also been installed.

form

1. Body part: including

Bicycle photos (11 pieces)

The frame, front fork, handlebar, saddle, and front fork assembly are the main components of a bicycle. The transmission part includes pedals, cranks, sprockets, chains, center shafts, and flywheels. The pedals are manually stepped on, and the wheels are driven to rotate through the above transmission components, driving the vehicle forward.

2. Action section: front and rear wheels, including front and rear axle components, spokes, rims (rims), tires, etc.

3. Safety devices: including brakes (brakes), lights, bells, reflective devices, etc.

According to needs, some accessories can also be added, such as brackets, hangers, safety forks, mudguards, air cylinders, etc. In addition, sports cars, racing cars, mountain bikes, etc. equipped with variable speed mechanisms are also equipped with variable speed controllers and front and rear chain shifters.

4. The composition of a hand and foot dual power bicycle: A box made of alloy has been added to the frame of a traditional bicycle, which contains various transmission parts. Through the interaction of forces, the hand and foot dual power is achieved, with simple push and pull movements of the handlebars, allowing the car to move forward with the handlebars. This not only saves effort, but also allows for fitness.