Volkswagen Enthusiast
For Nsw the ruling is no more or less than 7%Originally Posted by Hillbilly
We’re not talking extreme lifts here, just more compliant tyres for off-road use. The car has 20” 40 profile which would be horrible on rough roads and more susceptible to damage. 17” 65 profile is gonna add a lot more cushion and the right tread and sidewall thickness will add security for punctures.
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Volkswagen Enthusiast
Agreed, but I hope everyone realises that the profile is a percentage of tread width. So 65% of 215mm is less than 65% of 245mm. About 20mm difference on each side of the tyre, so approx 40mm total. That’s not a small amount(maybe still legal though- if 7% is the rule)
Volkswagen Enthusiast
The 7% applies to the diameter compared the OEM tyre. Width doesn’t come into it regarding the ruling however width is a factor in the overall diameter measurement. So as long as your overall is under 7% smaller or larger than a placarded OEM rim and tyre combo your sweet. (Rubbing is a separate issue however and must still be checked.
https://www.rms.nsw.gov.au/documents...eels-tyres.pdf
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Last edited by Foxpuppet; 31-03-2019 at 01:35 PM.
Ultimate Dubber
In QLD the Tiguan can have tyres 15mm LARGER Diameter or 26 mm SMALLER diameter.
An MC category vehicle like a Landcruiser etc can have tyres up to 50mm large diameter or 26 smaller diameter
A Tiguan is classed as an AWD softoader and is NOT an MC category vehicle
From the ADR rules
Section LS Tyres, Rims, Suspension and SteeringVersion 2.1 –1 November 2015 Page 20/LS804.2.4
Overall Nominal Diameter
The overall diameter of any tyre fitted to a passenger car or passenger car derivative must not be more than 15mm larger or 26mm smaller than that of any tyre designated by the vehicle manufacturer for that model.
Last edited by Hillbilly; 31-03-2019 at 02:24 PM.
2021 Kamiq LE 110 , Moon White, BV cameras F & B
Mamba Ebike to replace Tiguan
Volkswagen Enthusiast
Well that changes the game a bit. 711mm is the diameter of the 255/40r20
225/65 R17 will get in just under the 15mm increase.
Yokohama have a GO15 in that size.
Kumho AT51 also in that size.
Cooper has the ATT in that size
Or the AT3 in 235/60r17
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Last edited by Foxpuppet; 01-04-2019 at 05:54 PM.
Volkswagen Enthusiast
Maybe I worded my post strangely, for people not familiar with tyre sizing. Sorry if that’s been the case.
Ultimate Dubber
Rules often do rather than misread opinions LOL
2021 Kamiq LE 110 , Moon White, BV cameras F & B
Mamba Ebike to replace Tiguan
Dub Crazy
I'm extremely familiar with tyre sizing and tyre/rim packages and your post made very little sense...
carandimage The place where Off-Topic is On-Topic
I used to think I was anal-retentive until I started getting involved in car forums
New Dubber
Hey, thanks for the input. I'm not familiar with those measurements you noted sorry but basically the stock wheels currently on the car are 255/40 R20. So I think as long as the brake clearance is fine, I should be able to fit ie. a genuine 18" rim from VW and fit a 235/55 R18 on it or so. Do you think 17" would be better? I had the Yoko GO15s on my Forester before and yeah, great tyre!
Ultimate Dubber
Heres the truth You can only go 15mm larger diameter or 26mm smaller.
What happens if you do
Larger your speedo will read slower than it did before.
You should check it now against a GPS to see what it reads at 100kph and will possibley read as high as 107.
So a slightly large diameter will bring it closer to correct.
Gearing will be slightly higher so slower off the mark Braking not quite so good
Smaller diameter Speedo will be wildly out and show a much faster false speed
Braking will be better and will be faster off the mark
You can check it here as its a really good comparator Can alter sizes and also offset etc.
Will give speedo differences as well
Custom rims, wheel tire packages
2021 Kamiq LE 110 , Moon White, BV cameras F & B
Mamba Ebike to replace Tiguan
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