Originally Posted by
clubagreenie
Not that I'm one to go out on a limb but Stevo you're a tool.
I/most of us started out on 7.750/16's, even the toyos on split rims. You could get them everywhere, easy to change, just a staple tyre. Then they designed something called a sunraysia, and then you "needed" for some reason big wide fat "floatation" (the term at the time) tyres to drive on sand. Then ruts started appearing, I remember the difference between Fraser Is from '79 to '81, and the Simpson/Inaminka/Birsdville/Strezlecki tracks back in the same eras. Then 31's appeared and we needed 15's to fit (again why? 'cause they started at that size). And from there as each tyre size dug out tracks more and more tyres got larger and larger.
My question, if tyres ARE NOT the cause of the ruts, why are tyres the only things that are changing in this equation. Tyres get larger then next year we need bigger tyres, lather, rinse, repeat.
If it was rainfall/runoff then we'd all have been on the portal bandwagon and we'd still have 31's and portals.