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KYB Shocks are available in standard and upgraded, Gas and oil filled! See selection on right side of screen.

All vehicles are equipped with a form of suspension damping control. They may use hydraulic fluid, air, gas or be electrically controlled. The two most widely used internal designs are twin-tube and mono-tube.

Twin-tube vs. Mono-tube

KYBThe mono-tube design has a single cylinder:

The cylinder is divided into two sections: A fluid area and a gas chamber. The piston and shaft move in the fluid portion. It uses one fluid valve assembly in the piston. The diameter of the single working cylinder and piston valve is larger than in a twin tube even though the outside dimensions of each may the same. There is no need for an air or gas in the fluid area so the valve can operate more responsively and without any aeration or performance fade. The high pressure gas chamber is separated from the fluid area by a floating piston & seal. That provides an expansion area for the excess fluid movement during the compression stroke. On more aggressive movement the floating piston is pushed further into the gas chamber which increases gas pressure quickly and provides additional damping force. Because of its higher performance capabilities, the mono-tube design is used as original equipment on some vehicles and offered as an upgrade on vehicles that came equipped with the twin tube design.

The twin-tube design has two cylinders:

The inner, or working cylinder, is where the piston and shaft move up and down. The outer cylinder serves as a reservoir for the hydraulic fluid. There are fluid valves in the piston and in the stationary base valve. The base valve controls fluid flow between both cylinders and provides some of the damping force. The valves in the piston control most of the damping. The term Gas Shock usually refers to the same twin-tube design, but with one improvement. Low pressure Nitrogen gas is added to replace any oxygen air. The effect lessens aeration and performance fade.
Shock Absorbers KYB | Classic Mini

Shock Absorbers KYB | Classic Mini

Shock Absorbers KYB | Classic Mini

A good shock absorber can transform a poor handling car into one that is a joy to drive. KYB brand "stock" shocks, 442001 front and 442002 rear (Classic Mini only). Shock stroke extends from 8-1/4" closed to 13" full extended. Sold each but recommended to replace in axle sets.

These are stock shocks from a brand you can trust! A decent shock can transform a poor handling car into a joy to drive. KYB brand "stock" shocks for standard suspension, 442001 front and 442002 rear. Sold each but recommended to replace in axle sets.

Front KYB Gas-A-Just pressurized self-adjusting shock absorber for standard ride height road-driving cars. Sold each, but recommended to replace in axle sets.

After initial testing Mini Mania introduced the Kyaba (KYB)'s gas charged "Gas-A-Just" shock absorbers to the Classic Mini market providing an excellent upgrade for those running standard shocks on a road car even with 13" wheels. Offering a 25% upgrade to their standard equivalent they remain equally consistent in use unlike other less expensive brands. Great value and quality from the largest manufacturer of original equipment shock absorbers in the world. Open length from pin centres is 324mm and closed length is 210mm.

  • Monotube high pressure gas shock absorbers
  • Restores OE monotube performance
  • Increases performance over OE twin tube
  • Completely eliminates foaming and performance fade
  • Up to 30% more damping than twin tube
  • Single, seamless working cylinder, heavy duty gauge
  • Phenolic piston seal provides consistent performance
  • Additional floating piston separates oil and compresses nitrogen gas to add velocity sensitive performance
  • Seamless mounts and bonded bushings adds strength and eliminates noise

See 552019 for rear shock version (Classic Mini only).

Front KYB Excel-G gas-pressurized shock absorber for standard-suspension models, uprated 25% over their standard oil-filled shocks. Beware of others who claim 25% upgrades - they do not always state what they are 25% upgrades of. We have tried and tested every shock on the market, and these are the best quality and best priced damper on the market from the world's leading shock absorber producer. Sold each, but recommended to replace in axle pairs.

See 342002 for rear shock version (Classic Mini only).

Rear KYB Excel-G gas-pressurized shock absorber for standard-suspension Classic Minis, uprated 25% over their standard oil-filled shocks. Beware of others who claim 25% upgrades - they do not always state what they are 25% upgrades of. We have tried and tested every shock on the market, and these are the best quality and best priced damper on the market from the world's leading shock absorber producer. Sold each, but recommended to replace in axle pairs.

See 342001 for front shock version.

Rear KYB Gas-A-Just pressurized self-adjusting shock absorber for standard ride height road-driving Classic Minis. Sold each, but recommended to replace in axle sets.

KYB's gas charged "Gas-A-Just" shock absorbers are an excellent upgrade for those running stock shocks on a road car. They are an excellent value for the price and offer good handling without sacrificing ride quality.

See 552018 for front shock version.

Right-hand rear AGX Sport Adjustable twin-tube gas-filled shock made by KYB; allows drivers to adjust dampening to match specific driving conditions quickly. Includes manual eight-stage adjustable dampening which makes it completely on-the-car adjustable within minutes. With its competition-grade engineering and construction, AGX Sport Adjustable Shocks and Struts are perfect for sport enthusiasts and high performance drivers. Sold each, but recommended to replace in axle sets.

Rear shocks should be fitted with the adjuster pointing towards the backplate, so order 743045 for right-hand side and 743046 for left-hand side. See 743039 for front shock version.

Left-hand rear AGX Sport Adjustable twin-tube gas-filled shock made by KYB; allows drivers to adjust dampening to match specific driving conditions quickly. Includes manual eight-stage adjustable dampening which makes it completely on-the-car adjustable within minutes. With its competition-grade engineering and construction, AGX Sport Adjustable Shocks and Struts are perfect for sport enthusiasts and high performance drivers. Sold each, but recommended to replace in axle sets.

Rear shocks should be fitted with the adjuster pointing towards the backplate, so order 743045 for right-hand side and 743046 for left-hand side. See 743039 for front shock version.

Front AGX Sport Adjustable twin-tube gas-filled shock made by KYB; allows drivers to adjust dampening to match specific driving conditions quickly. Includes manual eight-stage adjustable dampening which makes it completely on-the-car adjustable within minutes. With its competition-grade engineering and construction, AGX Sport Adjustable Shocks and Struts are perfect for sport enthusiasts and high performance drivers. Sold each, but recommended to replace in axle sets.

See 743045 for right-hand rear shock version, or 743046 for left-hand rear shock version.

KYB Shocks are available in standard and upgraded, Gas and oil filled! See selection on right side of screen.

All vehicles are equipped with a form of suspension damping control. They may use hydraulic fluid, air, gas or be electrically controlled. The two most widely used internal designs are twin-tube and mono-tube.

Twin-tube vs. Mono-tube

KYBThe mono-tube design has a single cylinder:

The cylinder is divided into two sections: A fluid area and a gas chamber. The piston and shaft move in the fluid portion. It uses one fluid valve assembly in the piston. The diameter of the single working cylinder and piston valve is larger than in a twin tube even though the outside dimensions of each may the same. There is no need for an air or gas in the fluid area so the valve can operate more responsively and without any aeration or performance fade. The high pressure gas chamber is separated from the fluid area by a floating piston & seal. That provides an expansion area for the excess fluid movement during the compression stroke. On more aggressive movement the floating piston is pushed further into the gas chamber which increases gas pressure quickly and provides additional damping force. Because of its higher performance capabilities, the mono-tube design is used as original equipment on some vehicles and offered as an upgrade on vehicles that came equipped with the twin tube design.

The twin-tube design has two cylinders:

The inner, or working cylinder, is where the piston and shaft move up and down. The outer cylinder serves as a reservoir for the hydraulic fluid. There are fluid valves in the piston and in the stationary base valve. The base valve controls fluid flow between both cylinders and provides some of the damping force. The valves in the piston control most of the damping. The term Gas Shock usually refers to the same twin-tube design, but with one improvement. Low pressure Nitrogen gas is added to replace any oxygen air. The effect lessens aeration and performance fade.
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