Koni Special D (Red) Shock 89-91 Avanti All - Rear

Description

Special D / Classic Shock – Rear

KONI Special D / Classic 8040 Series red painted, internally rebound adjustable twin-tube low pressure gas charged shock absorber.

The red KONI line is meant for drivers who want to improve their car in general; better comfort and road-holding combined with a higher level of safety. KONI Special D / Classic shock absorbers are available for most performance cars. KONI select the most appropriate technology for each car from the wide range of shock absorber types. Each shock absorber is then customized for the car model. Hence, a KONI Special D / Classic is always the best choice, for replacement as well as improvement.

Features:

• The “Original” Shock that earned KONI’s World Class reputation.
• Broad applications, including older cars
• Rebound adjustable off-the-vehicle
• Red finish (Specials)
• Lifetime Warranty

Click here for installation instructions.

What ARE Twin-Tube Shocks?

Twin-tube design shock absorbers, sometimes referred to as hydraulic or gas-hydraulic shock absorbers, have two tubes one for the piston to work in and one known as a reservoir tube for the excess oil to move in and out of. As the piston rod moves in and out of the shock the oil moves through valves between the two tubes ensuring controlled damping occurs to control the suspension of the vehicle. When the piston rod is pushed in, oil flows without resistance from below the piston through the orifices and the non-return valve to the volume above the piston. Simultaneously, a quantity of oil is displaced and forced to flow through the bottom valve into the reservoir tube. The resistance, encountered by the oil on passing through the bottom valve, generates the bump damping. When the piston rod is pulled out, the oil above the piston is pressurized and forced to flow through the piston. The resistance, encountered by the oil on passing through the piston, generates the rebound damping.

Fitment