Australia has the largest and heaviest road-legal vehicles in the world.
Some configurations topping out at close to 200 tonnes.
They operate in western New South Wales, western Queensland, South Australia, Western Australia and the Northern Territory.
Australian Road Trains
Early Beginnings Early road trains had problems with tyres. The tyre quality wasn't all that good. Some had engine problems. The old saying was, "If it goes, put another ton on it. If it doesn't, take a little off and when it gets rolling, run up alongside it and throw it back on."