Who has 285 tyres on there Defender?

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Originally Posted by rick130

285/75's gain you more clearance under the diffs

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How does a tyre wider than a 235, 10mm shorter than the standard 85 gain more clearance under the diff?

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Originally Posted by Aaron

How does a tyre wider than a 235, 10mm shorter than the standard 85 gain more clearance under the diff?

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Because the profile is not a mm measurement its a percentage

235mm/85%of 235mm = 199.75mm High

285mm/75% of 285mm = 213.75mm high

;)

Offcourse!

Who was I to think tyre messurments could be so simple!

Just when I thought I had made my tyre choice!

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Originally Posted by gf110

G'day Azza

I'm running Mickey Thompson 285/75 MTZ's on my Defender. Set up with ~1.0" lift and procomp 16x8 rockcrawler wheels with 4.25" backspace. With this backspace the turning circle is better than std but you will need to extend your wheel arches if you want it engineered. On full articulation the tyres just kiss the outside lip of the original wheel arch flares.

In my experience and on the terrain I drive the 285's walk all over the 235/85's I previously ran.

Cheers

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where do u find extended wheel studs

What abiout the LEGALITIES of the mentioned 285's in Qld ?
Any issue with them ?

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Originally Posted by VladTepes

What abiout the LEGALITIES of the mentioned 285's in Qld ?
Any issue with them ?

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dont know? i live in NSW:D:wasntme:

cheers phil

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Originally Posted by VladTepes

What abiout the LEGALITIES of the mentioned 285's in Qld ?
Any issue with them ?

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Last time I read the QLD rules you are allowed to go 50% wider on 4x4s with beam axles F+R.

A 7.50x16 = 190.5 mm x 1.5 = 285.75mm

WHat are the relative price of these tyre sizes ?

235, 265, 285 r 16's

thats not easy to answer, generally the most common size's should be cheaper than the less sort after sizes, but then it still depends on the brand of the tyre and tread type etc etc..

cheers phil

Qld Transport website says re the standard size "the overall diameter of the tyre must not vary by more than +15mm or -26mm."

According to a Maxxis brochure I have the overall diameter of their Big Horn 235/85 is 806mm, the 285/75 is 834mm, and 255/85 is 845mm.

However, I understand there are several ways to measure overall diameter.