Why do these trucks have too many axles and tires ▶ 5 ton weight tir

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Why do these trucks have too many axles and tires ▶ 5 ton weight tire change

Why do these trucks have too many axles and tires ▶ 5 ton weight tire change

 Great to see  New Zealand vids added with excellent realiistic  original material.  In Switzerland, relatively short (9.6 m / 32 ft) trucks with five axles are quite common. They are allowed to have a total weight of 40 (metric) ton. What makes them somewhat special is that three out of the five axles are steered (the front two and the last one), which enables a turning radius below 20 m / 64 ft.  I'm surprised but not shocked to discover how long it takes to refuel an A380! I hope there are enough Snickers bars to go around because no one's going anywhere for a while.  Yes I used to load many trucks when they came to Ontario with the many tires and axles from Michigan USA  and it was very funny to see this in Ontario Canada.
We didn't have this kind of restrictions. The worst Tires on Trailers to damage the highways was the giant single tires on trailers they make ruts and damage roads. Surely all those tyres and wheels add significantly to the ULW of the vehicle thus reducing the payload The tyre scrub going around bends will cause more damage to the road surface than is saved by the reduced axle load. Why don't they use 'Super single' 385/65R22.5  on the trailers, that would save some weight

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