The structure of the bicycle!
1. The body part: including the frame, front fork, handlebar, saddle and front fork assembly, etc., which are the main body of the bicycle.
The transmission part of a bicycle (20 photos) includes pedals, cranks, sprocket wheels, chains, bottom axles and flywheels. The pedals are stepped on by humans, and the wheels are driven to rotate through the above transmission parts to drive the bicycle forward.
2. Action part: namely front and rear wheels, including front and rear axle components, spokes, rims (rims), tires, etc.
3. Safety devices: including brakes (brakes), lights, bells, reflection devices, etc. Some accessories can be added as needed, such as brackets, hangers, safety forks, mudguards, air cylinders, etc. In addition, sports cars, racing cars, mountain bikes, etc. equipped with a transmission mechanism are also equipped with a transmission controller and front and rear derailleurs.
