Thread: Rim offset - need a guide for dummy's

Originally Posted by CJT

All standard D2 rims where a +57mm offset, therefore the ZU 16x8 +38 alloys will sit a further 19mm out from the factory rims.

I wouldn't be concerned about the difference in rim width as that will always be smaller than the tyre width.

What size tyres are you going to run on the ZU Alloys?

On a side note, if you have the LRA Extra Large flares you should not have any issues with width. My wheels and tyres should be pretty much flush with the outside of the LRA flares, however I have 18x9 +32mm rims with 12.5" wide tyres.

Chris, won't the ZU rims stick out an extra 31mm? I don't think you allowed for the extra 1" width of the ZU rim compared to standard.

Originally Posted by walker

Chris, won't the ZU rims stick out an extra 31mm? I don't think you allowed for the extra 1" width of the ZU rim compared to standard.

The ZU Alloys will stick out further than the standard wheels.
The 16" x 8" ZU Alloys will stick out a further 19mm per side which is increasing the wheel track by 38mm overall.
The 18" x 8" (+36mm offset) will do 21mm / 42mm respectively.

You are legally allowed to increase the wheel track by 50mm overall, so you can fit wheels with an offset at a maximum of +32mm.

I don't know why the steel Dynamic wheels that Les Richmond Automotive sell are +30mm. If they changed them by 2mm they would be road legal with no engineering requirements.

Originally Posted by walker

But I was worried that the tyres and rims would not be wide enough and it would look funny.

Sadly, it seems that there is no perfect off the shelf wheel option available for the D2. The ZU Alloys offset is not far out enough (16" are 38mm and 18" are 36mm). When the ideal offset would be +32mm to take advantage of widening the wheel track by the maximum of 50mm allowed.
The Dynamic steel wheels sold by Les Richmond Automotive are 2mm too much per side and would require engineering. I think however you would likely get away with the steel wheels as it's only 2mm off per side...

Originally Posted by walker

Chris, won't the ZU rims stick out an extra 31mm? I don't think you allowed for the extra 1" width of the ZU rim compared to standard.

Yes that is correct if you take into account the rim width as well, I meant the offset will be an additional 19mm.

If you go to a 285 tyre they will sit approx. 35mm further out than the standard 255 fitment tyres on standard offset rims.

I didn't worry about the rim width as your tyres will always sit wider than rim.

Originally Posted by bitdist

Out of interest where did you get the blanks machined?

They where machined by the supplier to the specs I gave prior to being sent to my local tyre shop where I ordered them.

Originally Posted by CJT

They where machined by the supplier to the specs I gave prior to being sent to my local tyre shop where I ordered them.

What sort of dollars does it end up by the time the wheels have been brought in from overseas, machined and drilled to suit?

Originally Posted by twr7cx

What sort of dollars does it end up by the time the wheels have been brought in from overseas, machined and drilled to suit?

Here are some prices;

Fuel Offroad (that I was originally getting)
$440 per wheel, however after waiting close to four months and the blanks not arriving from the US we gave up on those.

ATX Alloys (the ones I did get)
$425 per wheel, after ordering them the blanks where already in stock in Australia and the wheels where machined and delivered within two weeks.

As a comparison;

ZU Alloys
18x8 = $638 per wheel (Australian Price)
16x8 = $510 per wheel (Australian Price)

RANGE ROVER/DISCOVERY 2 ZU RIM - Discovery 2 - Discovery

16x8 Zu rim listed as 399 from above link, oz located.

Cheers
Kev