Off Road Tandem Chassis R.A.S.V. LS – 4.4


R.A.S.V. LS – 4.4 Tandem Leaf Spring Variant.

The R.A.S.V. LS – 4.4. is a versatile military style platform, that accommodates a wide variety of equipment integration and cargo transportation needs.

Introducing Off Road Designs all new “Heavy Duty” Tandem Off Road Trailer Chassis.

R.A.S.V. LS – 4.4 Off Road Tandem Trailer Chassis.
R.A.S.V. LS – 4.4 Off Road Tandem Trailer Chassis.
R.A.S.V. LS – 4.4 Off Road Tandem Trailer Chassis.

A revolutionary new off road trailer chassis designed for those who are serious about remote area travel.
Proudly designed, developed and built right here in Australia. This Off Road Tandem Trailer Chassis and Sub Frame is bursting with features that you just won’t find on most other off road trailers.
The R.A.S.V. Light Tactical, Flat Deck Trailer Chassis can be configured for almost any application and a variety of load handling capabilities to specifically match your requirement.
100% Australian made.

Extreme Off Road Trailer Chassis and Frame. From: $15,950.

Tandem Trailer Chassis
R.A.S.V. Trailer Frame and Chassis.

Tandem Trailer Chassis.

It all starts with our unique chassis design.

The main design feature of our trailer frame is the 114 x 5mm central draw bar that runs the full length of the trailer chassis allowing the sub frame to flex and move as it negotiates rough off road terrain.
The hot dipped galvanised chassis is made of laser cut c – section cross members and open ended rectangular hollow section steel allowing for easy wash down and cleaning, with no closed in areas where mud, sand and salt can get trapped and cause corrosion.

RASV Off Road Trailer

Secondary Sub Frame.

Sitting above the main chassis you will find another secondary chassis sub frame. That supports the deck plating or trailer body. Unlike other trailers, the body is separated from the chassis with the use of high-density polyurethane body mounts. Which operate in the same way as the body mounts on your tow vehicle. Helping to isolate the body from high speed off road vibrations. Caused by corrugations and uneven terrain.

Tandem Trailer Secondary Frame
Sub Frame Supported By Individual Body Mounts.

Weighing in at just over 700kg, the R.A.S.V. is lighter than most single axle off road trailers on the market today. The tandem axle design also gives you the added benefits of four wheel flotation and greater suspension articulation. With twice the braking power and added stability off road.

Off Road Ability.

Remote off-road exploration is what this ultimate off road trailer frame was made for. Being conscious of the restricted maneuvering area on off road tracks. We have carefully thought out the chassis design, dimensions and over all ground clearance. Allow you to venture out into areas that conventional off road trailers simply can’t go. The single draw bar configuration also gives you an advantage over traditional A Frame trailer designs. By allowing you to maneuver the trailer into an over 90* jack knife position behind the tow vehicle. Giving you a much tighter turning circle and reversing capability off road.

Tandem Trailer Chassis 90* Jack Knife Turn
90* Jack Knife Turn.
Tandem Trailer 90* Jack Knife Turn
90* Jack Knife Turn.

By keeping the trailer dimensions within the width of most tow vehicles we have also been able to increase the maneuverability off road through tight areas. Along narrow tree lined outback tracks, or along tight, twisting mountain roads. Keeping the Off Road Trailer dimensions in line with the tow vehicle also improves vehicle handling and fuel efficiency. By reducing the amount of wind and drag that you are likely to encounter during higher speed on road travel.


  • Two sets of Alco 1800 kg rocker roller leaf suspension.
  • 4 – 10 inch electric drum breaks.
  • 4 – Heavy duty large boar off road shock absorbers.
  • 2 – 1600 kg 50mm square steel axles.
  • 4 – Sets of Japanese parallel bearings.
  • 2 – Rear pivot swinging mud flap mounts and mud flaps.
  • Trailer hand brake cables.
  • Frontal running gear stone protection – Insertion rubber cross guard.
  • Hot dipped galvanised trailer chassis.


  • Full length 4.4 mtr, 114mm x 5mm tubular steel Draw bar.
  • 1.5 mtr frontal draw bar length. Allowing for a 90*jack knife turn.
  • The tubular draw bar can also be used as a 38 ltr reserve water tank or double as a compressed air tank. (optional)
  • Rear draw bar heavy duty pintle hook and recovery point.
  • 6 – Heavy duty D – Shackle side recovery points.
  • C Section cross members for easy cleaning.
  • Solid chassis bracing gussets.
  • Flexible cross bracing struts.
  • 4 point heavy duty shock absorber top mounting pins.
  • 20 – 30mm x 20mm x 8mm Neoprene body mounts.
  • 4 – twin jerry can mounting brackets (optional)
  • Slotted steel electrical cable runners.
  • Twin under body water tank mounting points for water storage upgrades.


  • Cruise Master DO 35 – 360 * Off Road Coupling.
  • Hand brake lever and mounting plate.
  • 2 – Heavy duty chain hooks.
  • 2 – High tensile safety chains.
  • High lift jack lifting point.
  • Swing Down trailer support jack.
  • Top and Bottom D – Shackle recovery points.
  • 20 mm hand brake lever bash plate.
  • Front draw bar jerry can mounting plate. (optional)
  • 32mm Draw bar water fill point. (optional)
  • Front draw bar compressed air – water outlet valve. (optional)


  • Rear step.
  • Rear winch cable slot.
  • 2 Water proof resin filled LED trailer lamps.
  • Heavy duty rear pintle hook recovery point.
  • 5 mm Tail light protection plates.
  • 20mm Pintle hook bottom bash plate.
  • Heavy Duty winch mounting plate. (Optional)
  • Bolt on – pivoting mud flap assembly.
  • Rear draw bar compressed air – water outlet valve. (optional)


The unique Independently supported Secondary Sub Frame is mounted on 20 neoprene body mounts. Which reduces and stop damaging vibration and stresses moving from the main chassis to the sub frame and up into the body. While still allowing the main chassis to move and flex whilst negotiating rough terrain.

Sub Frame / Deck Area : 3.0 mtrs long x 1.75 mtrs wide.


  • 4 – 265 / 7 5 / 1 6. All terrain tyres.
  • 4 – 16 x 8 “ 6 stud black steel rims.

Tandem Trailer
R.A.S.V. Trailer Frame and Chassis.
Galvanised Trailer Chassis
Main Chassis Under Body.
Tandem Trailer  Body Mounts
Sub Frame Body Mounts.
Tandem Trailer Chassis Draw Bar Attachments
Main Chassis Front Draw Bar.
Tandem Trailer Chassis Off Road Hitch
Main Chassis Front Draw Bar.
Tandem Trailer Chassis Rear Winch Plate
Main Chassis Rear.
Tandem Trailer Chassis

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If you would like to know more about our Trailers, or 4WD Products, you can request more information via the Contact Us Page or by calling on the number below.

Phone Jason on 0488 069 731