Originally Posted by
AK83
:D
LOL! makes me laugh too.
.. but! ...
The only reasoning I can think of is:
in the event of an emergency, you could use that trailer tyre on the tow vehicle to get you to somewhere other than the rig may have got stuck.
That is, if worse came to worse and you had no other option than to leave the van behind a mud type tyre could get you out of muddy conditions a little easier.
Other than that there is no reason to do so .. other than the typical 'urban look'.
On a technical side a closed tread, high strength sidewalled tyre is still going to be stronger and more resistant to any damage.
So unless you're driving at 250k/h all the time(as some seem to think is neccessary! :p) then a nice 8 or even 16 ply truck tyre would be the best option if strength is a priority.
For many years that I used to do the Oodnadatta track when I could, it always amazed me that all the tyres dumped on the side of the road were predominantly muddies and the rest were those pokey little 10 or 12 inch jobbies used on some campers(and boat trailers!)
Of course now it's not as much of a problem as it once was, as they're extending the bitumen further and further every time I go out there.