KONI Special ACTIVE shock absorbers

Features of KONI Special ACTIVE shock absorbers

• FSD valve technology
  KONI's unique and patented FSD valve technology provides regulated damping based on the frequency of road vibrations, resulting in more comfort with small bumps and improved control with larger shocks.
• Dynamic adjustment
  The damper adjusts in real-time depending on driving behaviour and road conditions, providing an improved driving experience both on highways and rough terrain.
• Large oil capacity
  The larger oil capacity contributes to better heat transfer. This prevents overheating of the oil, ensuring consistent performance even during intensive use. The larger oil capacity also provides more efficient damping, resulting in a smoother and more stable ride.
• Twin-tube design
  KONI Special ACTIVE shock absorbers are always supplied in twin-tube design. This offers many advantages for vehicles operating with heavy loads.

What is a twin-tube shock absorber and why is it important?

FSD shock absorbers come as standard in twin-tube design, also known as hydraulic shock absorbers. This type of shock absorber offers significant advantages for vehicles driving with (heavy) loads, as it perfectly balances comfort, stability and handling characteristics.

A twin-tube shock absorber consists of two tubes:

• Inner tube: where the piston moves
• Outer tube (reservoir tube): where the excess oil collects

How does a twin-tube shock absorber work?
During damper operation, the piston rod moves in and out of the inner tube, causing oil to flow through valves between the tubes. This process provides controlled damping, which helps to effectively control the vehicle's suspension at all times.

• Bump (compression)
  When the piston rod in the damper is compressed (jounce), oil flows through openings and a check valve into the space above the piston. At the same time, some of the oil is displaced into the reservoir tube. The resistance the oil encounters as it passes through the FSD valve determines the degree of bump-damping, allowing the shock absorber to effectively absorb the impact of bumps and unevenness.
• Rebound (extension)
  When the piston rod is pulled out of the damper (rebound), the oil above the piston is compressed and forced to flow down through the piston. The resistance the oil encounters as it passes the piston generates rebound damping, which ensures controlled rebound and prevents excessive body movement.

Ideal for light commercial vehicles
Twin-tube shock absorbers provide smoother and more effective damping thanks to their larger oil capacity. This results in improved driving comfort, especially with heavy or variable loads. They are designed for extreme conditions. The clever design ensures that this damper is cost-effective for vehicles that continuously operate in demanding conditions.

Specific deployment areas place high demands on a vehicle's suspension system. In most cases, an upgrade to a suspension system from MAD is sufficient. Under extreme conditions, such as continuous heavy-laden driving, the original shock absorber may not sufficiently control the suspension. For those situations, we recommend combining one of our selected suspension systems with KONI Special ACTIVE shock absorbers for optimal performance. The MAD Special Duty Kit offers maximum stability, excellent handling and high ride comfort, even in intensive use.

MAD Special Duty kits are carefully composed and tested to perfectly match the technical requirements of vehicles and specific demands of users. A smart investment for top performance, which also offers a price advantage in both purchase and installation.