Thread: Changed your wheels or going to? Read this first.

Originally posted by downundersteve
From Licensing office:
Rim width must not exceed the maximum rim width specified by the manufacturer by more than 25mm (1")

Oops :wink:

<div class='quotetop'>QUOTE</div><div class='quotemain'>The wheel is contained completely within the body work of the vehicle which includes acceptable flares. [/b][/quote]

Ahhh.... Got that covered!

<div class='quotetop'>QUOTE</div><div class='quotemain'>Rim diameters must be the same as specified by the manufacturer. [/b][/quote]

This ones wrong, legally a 2" increase in diameter from manufacturers largest diameter is legal.... However, only a 15mm increase in rolling diameter is acceptable

<div class='quotetop'>QUOTE</div><div class='quotemain'>The track must not be increased by more than 25mm (1") over the maximum specified by the manufacturer.[/b][/quote]

Bugger, gone big time here too :!:

<div class='quotetop'>QUOTE</div><div class='quotemain'>Reducing the wheel track less than the original manufacturers specification is not permitted.[/b][/quote]

Although why anyone would want to do that is beyond me 8)

Thanks for the info!

Cheers
Mike

<div class='quotetop'>QUOTE</div><div class='quotemain'>Rim diameters must be the same as specified by the manufacturer.

This ones wrong, legally a 2" increase in diameter from manufacturers largest diameter is legal.... However, only a 15mm increase in rolling diameter is acceptable[/b][/quote]

I just copied what I got from licensing? oh well.

Whats the difference between wheel diameter and rolling diameter?

I'm lucky I haven't started to buy any non-standard stuff.
But I'm gonna

yes I have this problem with the rims I put on my subaru that was 3 ins more than standard which was 14 , but i got around this because it comes under the heading of Rim and Tyre comanation and only a 10mm increase in rolling diameter is acceptable ,But tell smart ass cop's this is hard for them to cope with there just like putting a Yellow Canary ,from there RWC tester's don't want to pass it because there have out of date sheets on this, but you have to tell them that VIC Roads said's it OK , and there make the rules ,not the cop's ,So if you get pulled over in future , keep a paper work on you ,(which I got of the net )to show cop's and because I did and a week later I got an appology from this cop that went to Head Office of VIC Roads in KEW and there set him right ,and I said to him thanks and can you Log it on the system for future pull overs and he said No .. I tryed hehe
cheers4now guys ... alex

so what is rolling diameter?

Originally posted by downundersteve
so what is rolling diameter?

The outside diameter of the tyre.

only a 10mm increase is allowed how rubbish is that!!!!

So if I want a higher profile tyre I need smaller wheels;
Some things are just so dumb.

Originally posted by downundersteve
only a 10mm increase is allowed how rubbish is that!!!!

So if I want a higher profile tyre I need smaller wheels;
Some things are just so dumb.

Or an engineers report.

DO it right and an engineer will sign off on 35's no worries.

"Ziggy" the Exclusive tyres Land Bruiser is legally engineered on 42's

Cheers
Mike

Originally posted by downundersteve
<div class='quotetop'>QUOTE</div><div class='quotemain'>Rim diameters must be the same as specified by the manufacturer.

This ones wrong, legally a 2" increase in diameter from manufacturers largest diameter is legal.... However, only a 15mm increase in rolling diameter is acceptable

I just copied what I got from licensing? oh well.

Whats the difference between wheel diameter and rolling diameter?[/b][/quote]

Hang on. They say rim diameter, not tyre diameter. That means you can't fit 15" rims if your car came with 16" rims. That also means there's lots of illegal Japanese 4WDs out there. Wheel diameter = rim diameter. On (full size) Land Rovers, this is 16".

Rolling diameter is slightly less than the diameter of the tyre when inflated to normal operating pressure. The weight of the car will balloon the bottom of the tyre thus causing this reduction.

Ron