Rigidity and Reliability were the major qualities in our product. PNK engineers and researchers have taken in the considerations from the user's perspective and demand for heavy-duty application. PNK's heavy-duty series feature metal dust cover for protection against off-road damage. For superior usage requirement, PNK increases the diameter sizes of shock absorber's body, piston rod, valve, and other internal parts to maximize the hydraulic fluid content inside the cylinder. The design allows efficient heat dissipation and maintains constant fluid viscosity over a prolonged usage.