HELPER SPRING MAXI-LOAD®

"THE FAVORABLE AIR SPRING ALTERNATIVE"

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WHY MAXI-LOAD

  • gives extra load support

  • stabilises swag and sway

  • reduces body roll

  • improves overall ride comfort

  • adjustable spring rate

  • self dumping property

  • reduces vibration

  • works like an air spring but without airlines or compressor, does not leak air

  • needs less installation space and less accessories than air spring

  • easy installation

  • progressive spring rate

  • silent functioning

  • maintenance free

  • prolongs factory leaf spring's life time

FACTORY SUSPENSION

  1. Weak leaf springs: not optimised for high load.

  2. Spring rate: linear, not adjustable.

  3. A small and weak bump stop (jounce bumper) is used to avoid hard contact between axle and frame.

  4. Factory bump stop is made from soft and cheap synthetic PU (Polyurethane) or from a solid rubber.

  5. Poor ride comfort.

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FACTORY BUMP STOP

MAXI-LOAD HELPER SPRING

  1. Factory leaf spring needs no modification

  2. Helper spring is mounted instead of factory bump stop. Spring rate: progressive and adjustable. 

  3. Maxi-load helper spring is robust and works together with the leaf spring from zero load or half load, etc. depending how you prefer to set it up. 

  4. Maxi-load helper spring is made from a natural, vulcanised rubber.

  5. Stabilises vehicle.

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MAXI-LOAD HELPER SPRING

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HOW IT WORKS

Main part of the maxi-load suspension enhancement kit is the maxi-load hollow rubber spring. It's not a simple massive piece of rubber like old style bump stops but a well engineered master piece... The spring rate and progressiveness is realised by proper design of critical dimensions. Main dimensions influencing performance are height (H1), outer diameter (OD1) and inner diameter (ID3). Furthermore the difference of the two chambers (H2, H3, ID1, ID2) play a significant role. The result is a characteristics that can not be reached by either a single spring leaf or by a coil spring: progressive (variable) spring rate, self-damping property trough hysteresis and perfect vibration isolation. But this is not everything, because after selecting the proper hollow rubber spring for your vehicle, the function can be set (fine-tuned) with different spacers (dimension T); when (in which stage) the helper spring should start to act. E.g.: if the vehicle is empty or when the vehicle is half loaded, as you prefer.  

AVAILABLE FOR LIGHT

COMMERCIAL VEHICLES

UP TO 7,5 TONS

  1. Different mounting kits for different vehicle brands

  2. Different hollow rubber spring sizes and convolutions (1,2,3)

  3. Spacers and screws for at least 3 different setting options

  4. Can be customised for special vehicles upon request

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MAXI LOAD HELPER SPRING KIT SELECTION

 

Maxi-load helper spring kits are available for most of the vehicles in two options:

 

Option one (v1) is a single- or double convoluted hollow rubber spring. This is the standard version and fits to all vehicles.  For this version at least 3 different strength levels can be set with spacers supplied in the kit.

Option two (v2) is a double- or triple convoluted hollow rubber spring for certain vehicle versions. 

 

If you want to be sure, which option you need, we recommend to measure free space for your new maxi-load helper spring, when vehicle is unloaded. See photos below: you can find three examples, how to measure free space between frame and axle (or leaf spring) depending on vehicle. 

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Vehicle: Ford Transit

Year: 2020

Free space: 195 mm

Type: contact with axle 

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Vehicle: Iveco Daily

Year: 2017

Free space: 95 mm

Type: contact with axle

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Vehicle: Mercedes Sprinter

Year: 2017

Free space: 155 mm

Type: contact with axle

VEHICLE LOOKUP

In the table below you can choose your vehicle and find the fitting maxi-load helper kit. Clicking on the article will bring you to our online shop, where you can find more information about the product. If you do not find your vehicle in the list, please contact us and we can work out a solution for your vehicle together. Vehicles are listed in alphabetical order:

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CITROEN JUMPER

YEAR: 1994 - 2021

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FIAT DUCATO

YEAR: 1994 - 2021

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FORD TRANSIT

YEAR: 2006 - 2021

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MERCEDES SPRINTER

YEAR: 1994 - 2018

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NISSAN NV400

YEAR: 2010 - 2021

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OPEL MOVANO

YEAR: 2010 - 2021

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PEUGEOT BOXER

YEAR: 1994 - 2021

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RENAULT MASTER

YEAR: 2010 - 2021

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VOLKSWAGEN CRAFTER

YEAR: 2006 - 2018