Thread: Tyre Width

There's a whole heap of stuff to be legal.

Not protruding beyond guards
Not exceeding maximum factory width by a certain amount
Not exceeding diameter by specific amount
Not increasing wheel track by more than 50mm overall...

It's not that simple. You can only increase the track by 25mm, so if you need flairs to cover the tyres, you're probably not legal anyway.

What do you mean by track? Width between outermost part of each tyre where it touches the ground? No one on the street is going to know the millimetre distance of the factory wheel track on each vehicle make and model are they?

Originally Posted by Finnius

No one on the street is going to know the millimetre distance of the factory wheel track on each vehicle make and model are they?

Their lawyers will.

Anyone ever been in trouble for excessive wheel track width and not for how much their tyres stick out from the bodywork?
So I presume flares increase the distance your tyres can stick out legally?

Originally Posted by Fifth Columnist

Their lawyers will.

Yes, If there is an accident where the tyres were seen to be the cause or part cause of the accident.

To the OP - depends on what you're after and if and by how much you're willing to break the law. There's plenty of people running around on illegal tyre combinations and not a second glance is given.

Chances of you getting into serious trouble - very, very low - but theoretically it is possible.

Originally Posted by Finnius

Anyone ever been in trouble for excessive wheel track width and not for how much their tyres stick out from the bodywork?
So I presume flares increase the distance your tyres can stick out legally?

Yes. Charlestown RTA, LJ Torana ,circa 1989, 14mm over track, 39mm overall given the 25mm we were allowed initially. They don't relax old rules, they just introduce new ones.

I just read VSB 14:
[ame="https://infrastructure.gov.au/roads/vehicle_regulation/bulletin/pdf/NCOP11_Section_LS_Tyres_Suspension_Steering_Nov_20 15_v4.pdf"]https://infrastructure.gov.au/roads/vehicle_regulation/bulletin/pdf/NCOP11_Section_LS_Tyres_Suspension_Steering_Nov_20 15_v4.pdf[/ame]

And it says the tyres cant protrude past the bodywork (including flares).
But it doesn't say what the flares have to be made of - so i guess the rubber ones legally allow you to run tyres that stick out past the factory bodywork...