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Off-Road Caravan | Air Suspension

Air Suspension for a smooth ride

Kimberley Camp4Ever 80 LED Camping Light great for offroad

The number ONE reason for air-suspension is improved ride at better speeds, and improved safety and stability.

  • The important design factor with suspension is to keep the wheels on the ground at all times, AND
  • Keep the suspension assembly as light as possible so that it easily follows the road.
  • The problem with coil suspension and electric drum brakes (leaf suspension is far worse and is not even worth discussing) is:

  • Coil suspension has to be set to take the weight of the caravan. This means it has to be set far "stiffer" to carry the weight than the ideal spring rate for travel conditions. With heavier vans, this is very noticeable.
  • Electric Drum brakes, particularly 12inch ones are incredibly heavy
  • When you combine electric drum brakes with coil springs, the independent suspension weight is so heavy there is a "kangaroo-ing effect" at speed over corrugations or rough roads.
    (Our Kimberley Classic is coil springs with Disc brakes for a lighter suspension arm)
  • What air suspension delivers is a much softer spring rate (about half that of the equivalent coil springs combined with disc brakes), a much light independent so that the suspension arm nicely follows the road for the safest and smoothest travel. That why luxury cars and 4WDs have air suspension!
  • By adding air into the airbags, you can raise or lower the height and carry the weight WITHOUT increasing the "spring rate". Your wheels follow the road no matter what the weight is!

Watch This Video Before You Read Any Further!

Discover how air suspension really works for offroad caravans and camper trailers. Using a simple model, Bruce Loxton unravels the mystery surrounding the suspension needs for offroad travel with single & dual axle trailers and caravans.


The number TWO reason is you use just one finger to level your off-road caravan at the campsite.

  • No more juggling to find a perfectly level site!
  • The Karavan off-road caravan can be levelled by simply toggling the air switches that adjust the height on each side of the caravan.
  • (The electric steps are anchored to the Karavan and also do not need level ground to be functional)
The number THREE reason is you save on fuel and improve the RANGE of your fuel tank!
  • The travel height can be reduced to lower the unit to the ground and reduce the windage. 
    This will improve towability and improve fuel consumption.
  • (There is an anti-sway bar fitted to isolate caravan swaying with air bag suspension)

Download a 28 page guide on off road caravan suspension design with focus on coil springs and air springs with ride height control.

Sizes - With Split System Airconditioner

heights of the Kimberley karavan off-road caravan with split system air conditioner
 
HEIGHT
 
A
CLOSED (Travel) | Air Suspension
2190mm
CLOSED (Storage) | Air Suspension
2100mm*
OPEN (Camping)
3085mm
*Coil Suspension changed to Air Suspension, Together with reducing tyre pressure, Karavan with Split System Airconditioner will drop to 2100mm* for garage entry.
(Based on 2013 Kimberley Karavan Limited Edition with 240V Aircon, Tyres-265R70R16 115 R LT (@14psi), Rims-16x8 and Airbags at 18psi)

Sizes - With 240V Roof Mounted Airconditioner

heights of the Kimberley karavan off-road caravan with split system air conditioner
 
HEIGHT
 
A
CLOSED (Travel) | Air Suspension
2275mm
CLOSED (Storage) | Air Suspension
2185mm*
OPEN (Camping)
3085mm
*Coil Suspension changed to Air Suspension, Together with reducing tyre pressure, Karavan with Airconditioner will drop to 2185mm* for garage entry.
(Based on 2013 Kimberley Karavan Limited Edition with 240V Aircon, Tyres-265R70R16 115 R LT (@14psi), Rims-16x8 and Airbags at 18psi)

To see how the Air Suspension System works here is a video of it in the Kimberley Kruiser lightweight off-road caravan:

off-road caravans camper trailers dealers