VB-FSD Shock Absorbers

Please use the product wizard at the bottom of the page to find the shock absorber kit for your vehicle. In order to use the wizard accurately you will need the number from your vehicle's rear shock absorbers. The front coilspring and FSD options are on the product page.

The everlasting problems with vehicle damping

Vehicle damping has always been a compromise between comfort and road-holding. An obvious example is a Formula 1 racing car which offers the best possible road-holding but with minimal comfort. In a personal or sport car one expects to experience the ultimate in comfort, combined with safe road-holding. Minimum damping is required for your comfort whilst strong damping is needed for safe and stable driving. This conflict of goals cannot be solved with conventional front & rear dampers. Other damper systems currently available to the market do not offer an adequate solution:

Position-dependent shock absorbers will give you extra comfort, as they allow more movement of your car, but as a result the road-holding is inferior. Sudden bumps in the road will still be very unpleasant.

Pneumatic and electronic adjustable shock absorbers may improve road-holding in the future. The disadvantage of such complex systems is that they are very expensive and time consuming to set up correctly.

VB shock absorbers with Frequency Selective Damping (FSD) technology offer the solution. Specifically designed for vans and motorhomes, VB FSD technology combines the ultimate in comfort and road-holding. Being a purely mechanical technology, removes any cost, reliability, or complexity problems which can arise from using electronically controlled suspension components.

VB FSD high performance dampers are your first choice in solving the everlasting problem with vehicle damping.

FSD principles

In general suspension terms, the conflict between comfort and handling can be split in two different frequency areas:

For comfort, with the suspension moving in a high frequency area (± 10 Hz), it is neccessary for low damping forces for the vehicle to remain comfortable.

For handling, with the suspension moving in a low frequency area (± 1 Hz), it is neccessary for high damping forces for the vehicle to remain safe and in control.

Conventional dampers are unable to solve the conflict in terms of comfort and handling, however if you are able to create a damper which can change the damping force level in relation to the frequency of the movement, you will be able to solve this conflict.

The VB FSD technology does just that!

How does it work?

In standard shock absorbers the main damping characteristic is defined by the oil flow going through the piston assembly.

Combining this standard damping characteristic with the FSD feature, VB added a special valve which is able to control a parallel oil flow next to the one going through the piston. This parallel oil flow is closed by the FSD feature, giving a rise in damping force almost linear to the time that the piston is moving in one direction.

Put simply: the FSD feature is a hydraulic amplifier that delays the build-up of pressure. One could say that an extra tuning option has been created in order to get the best possible combination of handling and comfort.

Since it is an integrated part of the hydraulic valve system inside the damper, no additional cables, sensors or any other electronic devices are needed to operate an FSD damper.

In comparison with costly systems which work on the basis of computer technology, complex electronics and sensors, FSD is the simplest and most economical way to significantly improve the ride and driving characteristics of your van.

  • Choose Vehicle Make
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  • Choose Vehicle Make
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Citroen Relay

Please choose the rear shock absorber number from your Citroen Relay:

  • CR 5206 JN
  • CR 5206 KH
  • CR 5206 KK
  • CR 5206 KN
  • CR 5206 KZ
  • CR 5206 LA
  • CR 5206 LS
  • CR 5206 LT
  • CR 5206 LV
  • CR 5206 LW
  • CR 5206 LX
  • CR 5206 LY
  • CR 5206 NA
  • CR 5206 NZ
  • CR 5206 PA
  • CR 5206 PE
  • CR 5206 PF
  • CR 5206 PG
  • CR 5206 TR
  • CR 5206 TS
  • CR 5206 TT
  • CR 5206 TW
  • CR 5206 TX
  • CR 5206 TY
  • CR 5206 VA
  • CR 5206 VC
  • CR 5206 VF
  • CR 5206 VG
  • CR 5206 VH
  • CR 5206 VS
  • CR 5206 VT
  • Choose Vehicle Make
  • Choose Shock Absorber
  • Show Selection

Fiat Ducato

Please choose the rear shock absorber number from your Fiat Ducato:

  • 1352281080
  • 1355821080
  • 1355822080
  • 1355823080
  • 1355824080
  • 1355826080
  • 1355827080
  • 1355828080
  • 1355829080
  • 1355830080
  • 1356966080
  • 1356967080
  • 1357401080
  • 1357402080
  • 1362546080
  • 1362547080
  • 1362548080
  • 1362549080
  • 1362551080
  • 1362553080
  • 1362554080
  • 1362557080
  • 1362577080
  • 1362578080
  • 1362579080
  • 1369848080
  • 1369851080
  • 50710736
  • 50710750
  • 50710752
  • Choose Vehicle Make
  • Choose Shock Absorber
  • Show Selection

Fiat Ducato Alko

Please choose the rear shock absorber number from your Fiat Ducato Alko:

  • 1217039
  • 1217058
  • 1217230
  • Choose Vehicle Make
  • Choose Shock Absorber
  • Show Selection

Peugeot Boxer

Please choose the rear shock absorber number from your Peugeot Boxer:

  • PB 5206 JL
  • PB 5206 KG
  • PB 5206 KJ
  • PB 5206 KL
  • PB 5206 KR
  • PB 5206 KZ
  • PB 5206 LS
  • PB 5206 LV
  • PB 5206 LX
  • PB 5206 LZ
  • PB 5206 NZ
  • PB 5206 PC
  • PB 5206 PF
  • PB 5206 TR
  • PB 5206 TS
  • PB 5206 TT
  • PB 5206 TW
  • PB 5206 TX
  • PB 5206 TY
  • PB 5206 VA
  • PB 5206 VC
  • PB 5206 VF
  • PB 5206 VG
  • PB 5206 VH
  • PB 5206 VS
  • PB 5206 VT