Customized processing of vehicle shock absorber

What are the classifications of motorcycle shock absorber?
There are many types of shock absorbers in motorcycle vehicle accessories. The vast majority of motorcycle vehicle accessories are cylinder shock absorbers, and only a few of them are steel plate spring structures. There are many types and varieties of cylinder shock absorbers
(1) Generally, according to the installation position, there are front shock absorbers and rear shock absorbers
(2) Classified by load adjustment type: spring initial pressure adjustment type, air spring type, installation angle adjustment type
(3) According to the direction of attenuation force, there are one-way shock absorbers and two-way shock absorbers
(4) According to the working position of the oil cylinder, there are inverted shock absorbers (i.e., the oil cylinder is above and the piston rod is below) and upright shock absorbers (the oil cylinder is below and the piston rod is above)
(5) According to the structure, there are telescopic tube type front fork hydraulic shock absorber (which is the most used front shock absorber in motorcycles at present), rocker arm type shock absorber, rocker arm lever vertical central shock absorber, rocker arm lever tilting central shock absorber
(6) According to the working medium, there are spring shock absorbers, spring air damping shock absorbers (because the damping force of air is limited, the damping effect is not ideal, and they are generally only used as rear shock absorbers for mopeds with low speed), hydraulic damping shock absorbers, oil air hybrid shock absorbers, and nitrogen filled hydraulic shock absorbers