Queensland-based RV company Australian Off-Road Campers has re-engineered and strengthened the chassis and wheel arches of the Quantum Series II.
The company's consulting engineer recommended a larger drawbar with the removal of the truss system after the black tank was added to the front drawbar.
The suspension upgrade now means the tare weight of the empty Quantum has increased to 1750kg. Quantum also gets a 35 litre front tank for flushing the toilet system.
The extra water capacity required the ATM to be increased to 2400kg with the addition of an electric breakaway system. This has allowed a 650kg load capacity.
The drawbar weight is now 170kg giving 10 per cent weight distribution for safer towing. Upgrades have increased the price by $4000 to $82,500 on the road, but they are not limited to the chassis.
Electrical improvements include AGM 120 amp hour calcium batteries, plug-in C/Tek battery charger, plug-in solar panels, extra fuse box and two extra 12-volt sockets. Inside, there are now S/S locked-down catches on the EvaKool 80-litre fridge/freezer for quick removal, soft-closing kitchen drawer slides and better quality Dometic taps.

Outside, the pop-top roof now has eight vibration supports to reduce tension and wear on scissor lifts which can be removed externally.
Other improvements include a rear spare wheel rack, an optional rear camera mounting pole, plug-in taillights, new self-locking and greaseable jockey wheel, optional bike rack, aluminuium front toolbox stand and keyless opening hot water system cover.