Independent suspension system

An independent suspension system, comprising:

• a steering unit configured to adjust a steering angle of a wheel;
• a shock absorber engaged with the wheel in order to absorb impacts applied to the wheel, the shock absorber comprising a first shock absorber and a second shock absorber, each of which arranged in a forward-rearward direction on opposite side surfaces of the wheel;
• and
• a link unit disposed between the shock absorber and the steering unit, the link unit being configured to vary a distance between the wheel and the steering unit,
• wherein the link unit comprises:
• a first upper arm disposed between the first shock absorber and the steering unit;
• a second upper arm disposed between the second shock absorber and the steering unit;
• and
• a ground clearance adjustment unit engaged with the first upper arm and the second upper arm, the ground clearance adjustment unit being configured to vary a distance between the first upper arm and the second upper arm.