wide rim and forest arch legality issues

Vic laws are something like 50mm extra on track width. Can only have 2" bigger rims. so 15s on an esky and like 20mm extra width. so 175 standard you can have 195 X0 15s. And i believe we have a rolling diameter increase restriction. WA would have its own laws tho. Which should be easy to find. If not talk to the people whos job it is too know. (eg I would talk to Vicroads)

p.s 265s look nice under forest arches hehe. I was in the newsagents and looking at so mag and a red arched Mk2 had 13inch wide tyres on the ass end... Geezz that thing looked tough.

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Originally posted by BryanS81

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Originally posted by JordyCharlieBoz

Vic laws are something like 50mm extra on track width. Can only have 2" bigger rims. so 15s on an esky and like 20mm extra width. so 175 standard you can have 195 X0 15s. And i believe we have a rolling diameter increase restriction. WA would have its own laws tho. Which should be easy to find. If not talk to the people whos job it is too know. (eg I would talk to Vicroads)

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I was always under the impression that the 50mm (2") on the width is actually the rim...nothing to do with the tyre itself...could be wrong tho.

Cheers
Bryan

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^^^^^^^^^^ correct

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Originally posted by fordsy


WA makes a lot of reference to National Standards of Practice for Light Vehicles. Here are some more links.


http://www.infrastructure.gov.au/roads/vehicle_regulation/bulletin/pdf/NCOP11_Section_LS_Suspension_and_steering_3Feb2006.pdf

Good luck. Post some pics when you get around to doing the car up.

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Been on holiday, nice surpise to see a healthy response to this thread. thanks for all the info guys. Following the info contained in the file supplied by fordsy above, the max tyre and wheel widths depend on what the widest OPTIONAL tyre provided by the manufacturer was...

Now, if were talking mk2's, I would guess 185s would have been the widest offered by ford. But I stand to be corrected here...

If you skip to the 17th page of the docco, a table shows the max allowable tyre/wheel width. A 185 max factory option equates to a permitted 235 width tyre, which corresponds to a 8.5inch rim when using a tyre ratio of 65 to 85, OR a 9inch rim for tyre profiles 60 or below.

Following my naive logic, if you fitted 15 inch (diameter) wheels to accomodate some fat brakes, then you would be pretty much forced to use a 60 profile tyre, thus permitting a 9 inch rim (assuming 185 tyres were offered as an option by ford).

Fat rims under forrest arches here we come.

Does anyone have any experience in fitting larger wheels tyres under a mk2? With a 13"rim its pretty basic, but what about the bigger diameter stuff? Methinks tyre availablity/price would start to play a role here too!

And fordsy - I wont be back in AUS till bout march next year.. so the photos might take a while. Planning and dreaming is the best I can do now :)

thanks guys!

thanks for the tip Jordy. Sounds like a fat looking solution indeed. From what I've read, I question the legality of your proposal, in WA at least. I thought all wheels should have the same width...

Post a pic once youve put them on!!!

so if my car has 8 x 16 wheels with 225/50 x16 as standard, this is what it has now, can i go to 9 x 18 with 235/40 x 18? or do i need an engineers report?
TONY.

Ash! is that a reply to my question?

standard 8 x 16 with 225/50x16.