Transmission failure due to tyres

[allforus]

Hi I am confused how tyres can affect transmission failure

I have heard people say if you have the non bmw star tyre on then it will wreck the transmission or tyres more than a few MM different in depth will also distroy it

It's just the new X1 are basically front wheel drive 100 % of the time so the fronts on mine are down at minimum yet rears are 6mm

Any information will be appreciated

[shadrack]

its all to do with the rolling radious of the tyre controlling 4x4 and gearbox i think, i had an issue on a range rover sport where the gearbox was would not change up gears, turned out it was tyre on the front been a different make, same size tyre as rest, different make and was slightly larger diameter so car thought it was cornering and wouldnt change up