Suspension system: Includes components such as suspension springs and shock absorbers, used to absorb road vibrations and improve the trailer's ride stability.
Shock absorbers: Reduce bumps and jolts during trailer operation, improving ride comfort and cargo protection.
Tires: The direct load-bearing components of the trailer; their quality and performance directly affect the trailer's driving safety and efficiency.
Wheel rims: Support the tires and transmit driving force; they are an important component of the trailer wheels.
